Finding the Fourth Proportional to 1,120.16, 1,545.72 and 654.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.16 : 1,545.72 = 654.32 : x
2. Step 2: Convert to fraction form
   1,120.16/1,545.72 = 654.32/x
3. Step 3: Cross multiply
   1,120.16x = 1,545.72 × 654.32
4. Step 4: Simplify right side
   1,120.16x = 1,011,395.51
5. Step 5: Solve for x
   x = 1,011,395.51/1,120.16
6. Step 6: Final answer
   x = 902.90