Finding the Fourth Proportional to 1,345.92, 1,859.52 and 1,124.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.92 : 1,859.52 = 1,124.16 : x
2. Step 2: Convert to fraction form
   1,345.92/1,859.52 = 1,124.16/x
3. Step 3: Cross multiply
   1,345.92x = 1,859.52 × 1,124.16
4. Step 4: Simplify right side
   1,345.92x = 2,090,398.00
5. Step 5: Solve for x
   x = 2,090,398.00/1,345.92
6. Step 6: Final answer
   x = 1,553.14