Finding the Fourth Proportional to 1,111.61, 1,668.41 and 592.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.61 : 1,668.41 = 592.04 : x
2. Step 2: Convert to fraction form
   1,111.61/1,668.41 = 592.04/x
3. Step 3: Cross multiply
   1,111.61x = 1,668.41 × 592.04
4. Step 4: Simplify right side
   1,111.61x = 987,772.22
5. Step 5: Solve for x
   x = 987,772.22/1,111.61
6. Step 6: Final answer
   x = 888.60