Finding the Fourth Proportional to 2,116.02, 3,173.52 and 654.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.02 : 3,173.52 = 654.78 : x
2. Step 2: Convert to fraction form
   2,116.02/3,173.52 = 654.78/x
3. Step 3: Cross multiply
   2,116.02x = 3,173.52 × 654.78
4. Step 4: Simplify right side
   2,116.02x = 2,077,957.43
5. Step 5: Solve for x
   x = 2,077,957.43/2,116.02
6. Step 6: Final answer
   x = 982.01