Finding the Fourth Proportional to 1,111.32, 1,655.43 and 1,055.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.32 : 1,655.43 = 1,055.16 : x
2. Step 2: Convert to fraction form
   1,111.32/1,655.43 = 1,055.16/x
3. Step 3: Cross multiply
   1,111.32x = 1,655.43 × 1,055.16
4. Step 4: Simplify right side
   1,111.32x = 1,746,743.52
5. Step 5: Solve for x
   x = 1,746,743.52/1,111.32
6. Step 6: Final answer
   x = 1,571.77