Finding the Fourth Proportional to 1,925.33, 2,656.94 and 1,139.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.33 : 2,656.94 = 1,139.36 : x
2. Step 2: Convert to fraction form
   1,925.33/2,656.94 = 1,139.36/x
3. Step 3: Cross multiply
   1,925.33x = 2,656.94 × 1,139.36
4. Step 4: Simplify right side
   1,925.33x = 3,027,192.18
5. Step 5: Solve for x
   x = 3,027,192.18/1,925.33
6. Step 6: Final answer
   x = 1,572.30