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Finding the Fourth Proportional to 803, 1,203.96 and 369.92

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Solution

The fourth proportional to 803, 1,203.96 and 369.92 is: 554.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    803 : 1,203.96 = 369.92 : x
  2. Step 2: Convert to fraction form
    803/1,203.96 = 369.92/x
  3. Step 3: Cross multiply
    803x = 1,203.96 × 369.92
  4. Step 4: Simplify right side
    803x = 445,368.88
  5. Step 5: Solve for x
    x = 445,368.88/803
  6. Step 6: Final answer
    x = 554.63

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