Finding the Fourth Proportional to 1,552.16, 2,322.72 and 1,140.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.16 : 2,322.72 = 1,140.32 : x
2. Step 2: Convert to fraction form
   1,552.16/2,322.72 = 1,140.32/x
3. Step 3: Cross multiply
   1,552.16x = 2,322.72 × 1,140.32
4. Step 4: Simplify right side
   1,552.16x = 2,648,644.07
5. Step 5: Solve for x
   x = 2,648,644.07/1,552.16
6. Step 6: Final answer
   x = 1,706.42