Finding the Fourth Proportional to 2,654.16, 3,980.89 and 706.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.16 : 3,980.89 = 706.24 : x
2. Step 2: Convert to fraction form
   2,654.16/3,980.89 = 706.24/x
3. Step 3: Cross multiply
   2,654.16x = 3,980.89 × 706.24
4. Step 4: Simplify right side
   2,654.16x = 2,811,463.75
5. Step 5: Solve for x
   x = 2,811,463.75/2,654.16
6. Step 6: Final answer
   x = 1,059.27