Finding the Fourth Proportional to 1,171.02, 1,755.86 and 477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.02 : 1,755.86 = 477.50 : x
2. Step 2: Convert to fraction form
   1,171.02/1,755.86 = 477.50/x
3. Step 3: Cross multiply
   1,171.02x = 1,755.86 × 477.50
4. Step 4: Simplify right side
   1,171.02x = 838,423.15
5. Step 5: Solve for x
   x = 838,423.15/1,171.02
6. Step 6: Final answer
   x = 715.98