Finding the Fourth Proportional to 1,870.63, 2,581.31 and 1,084.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.63 : 2,581.31 = 1,084.72 : x
2. Step 2: Convert to fraction form
   1,870.63/2,581.31 = 1,084.72/x
3. Step 3: Cross multiply
   1,870.63x = 2,581.31 × 1,084.72
4. Step 4: Simplify right side
   1,870.63x = 2,799,998.58
5. Step 5: Solve for x
   x = 2,799,998.58/1,870.63
6. Step 6: Final answer
   x = 1,496.82