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Finding the Fourth Proportional to 3,171.70, 4,757.19 and 1,223.74

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Solution

The fourth proportional to 3,171.70, 4,757.19 and 1,223.74 is: 1,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.70 : 4,757.19 = 1,223.74 : x
  2. Step 2: Convert to fraction form
    3,171.70/4,757.19 = 1,223.74/x
  3. Step 3: Cross multiply
    3,171.70x = 4,757.19 × 1,223.74
  4. Step 4: Simplify right side
    3,171.70x = 5,821,563.69
  5. Step 5: Solve for x
    x = 5,821,563.69/3,171.70
  6. Step 6: Final answer
    x = 1,835.47

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