Finding the Fourth Proportional to 3,332.24, 4,992.89 and 1,139.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,332.24 : 4,992.89 = 1,139.77 : x
2. Step 2: Convert to fraction form
   3,332.24/4,992.89 = 1,139.77/x
3. Step 3: Cross multiply
   3,332.24x = 4,992.89 × 1,139.77
4. Step 4: Simplify right side
   3,332.24x = 5,690,746.78
5. Step 5: Solve for x
   x = 5,690,746.78/3,332.24
6. Step 6: Final answer
   x = 1,707.78