Finding the Fourth Proportional to 1,874.82, 2,587.38 and 1,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,874.82 : 2,587.38 = 1,128.82 : x
2. Step 2: Convert to fraction form
   1,874.82/2,587.38 = 1,128.82/x
3. Step 3: Cross multiply
   1,874.82x = 2,587.38 × 1,128.82
4. Step 4: Simplify right side
   1,874.82x = 2,920,686.29
5. Step 5: Solve for x
   x = 2,920,686.29/1,874.82
6. Step 6: Final answer
   x = 1,557.85