Finding the Fourth Proportional to 1,870.57, 2,581.38 and 1,084.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.57 : 2,581.38 = 1,084.77 : x
2. Step 2: Convert to fraction form
   1,870.57/2,581.38 = 1,084.77/x
3. Step 3: Cross multiply
   1,870.57x = 2,581.38 × 1,084.77
4. Step 4: Simplify right side
   1,870.57x = 2,800,203.58
5. Step 5: Solve for x
   x = 2,800,203.58/1,870.57
6. Step 6: Final answer
   x = 1,496.98