Finding the Fourth Proportional to 2,116.33, 3,174.80 and 655.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.33 : 3,174.80 = 655.61 : x
2. Step 2: Convert to fraction form
   2,116.33/3,174.80 = 655.61/x
3. Step 3: Cross multiply
   2,116.33x = 3,174.80 × 655.61
4. Step 4: Simplify right side
   2,116.33x = 2,081,411.48
5. Step 5: Solve for x
   x = 2,081,411.48/2,116.33
6. Step 6: Final answer
   x = 983.50