Finding the Fourth Proportional to 1,061.89, 1,593.20 and 477.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.89 : 1,593.20 = 477.29 : x
2. Step 2: Convert to fraction form
   1,061.89/1,593.20 = 477.29/x
3. Step 3: Cross multiply
   1,061.89x = 1,593.20 × 477.29
4. Step 4: Simplify right side
   1,061.89x = 760,423.60
5. Step 5: Solve for x
   x = 760,423.60/1,061.89
6. Step 6: Final answer
   x = 716.11