Finding the Fourth Proportional to 1,870.18, 2,580.86 and 1,124.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.18 : 2,580.86 = 1,124.15 : x
2. Step 2: Convert to fraction form
   1,870.18/2,580.86 = 1,124.15/x
3. Step 3: Cross multiply
   1,870.18x = 2,580.86 × 1,124.15
4. Step 4: Simplify right side
   1,870.18x = 2,901,273.77
5. Step 5: Solve for x
   x = 2,901,273.77/1,870.18
6. Step 6: Final answer
   x = 1,551.33