Finding the Fourth Proportional to 1,870.51, 2,581.40 and 1,084.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.51 : 2,581.40 = 1,084.57 : x
2. Step 2: Convert to fraction form
   1,870.51/2,581.40 = 1,084.57/x
3. Step 3: Cross multiply
   1,870.51x = 2,581.40 × 1,084.57
4. Step 4: Simplify right side
   1,870.51x = 2,799,709.00
5. Step 5: Solve for x
   x = 2,799,709.00/1,870.51
6. Step 6: Final answer
   x = 1,496.76