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Finding the Fourth Proportional to 1,978.66, 2,967.57 and 746.04

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Solution

The fourth proportional to 1,978.66, 2,967.57 and 746.04 is: 1,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978.66 : 2,967.57 = 746.04 : x
  2. Step 2: Convert to fraction form
    1,978.66/2,967.57 = 746.04/x
  3. Step 3: Cross multiply
    1,978.66x = 2,967.57 × 746.04
  4. Step 4: Simplify right side
    1,978.66x = 2,213,937.05
  5. Step 5: Solve for x
    x = 2,213,937.05/1,978.66
  6. Step 6: Final answer
    x = 1,118.91

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