Finding the Fourth Proportional to 1,925.10, 2,655.59 and 1,139.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.10 : 2,655.59 = 1,139.00 : x
2. Step 2: Convert to fraction form
   1,925.10/2,655.59 = 1,139.00/x
3. Step 3: Cross multiply
   1,925.10x = 2,655.59 × 1,139.00
4. Step 4: Simplify right side
   1,925.10x = 3,024,698.04
5. Step 5: Solve for x
   x = 3,024,698.04/1,925.10
6. Step 6: Final answer
   x = 1,571.19