Finding the Fourth Proportional to 1,924.98, 2,656.52 and 1,139.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,924.98 : 2,656.52 = 1,139.04 : x
2. Step 2: Convert to fraction form
   1,924.98/2,656.52 = 1,139.04/x
3. Step 3: Cross multiply
   1,924.98x = 2,656.52 × 1,139.04
4. Step 4: Simplify right side
   1,924.98x = 3,025,882.54
5. Step 5: Solve for x
   x = 3,025,882.54/1,924.98
6. Step 6: Final answer
   x = 1,571.90