Finding the Fourth Proportional to 1,874.24, 2,585.37 and 1,127.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,874.24 : 2,585.37 = 1,127.72 : x
2. Step 2: Convert to fraction form
   1,874.24/2,585.37 = 1,127.72/x
3. Step 3: Cross multiply
   1,874.24x = 2,585.37 × 1,127.72
4. Step 4: Simplify right side
   1,874.24x = 2,915,577.81
5. Step 5: Solve for x
   x = 2,915,577.81/1,874.24
6. Step 6: Final answer
   x = 1,555.61