Finding the Fourth Proportional to 1,870.74, 2,581.20 and 1,084.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.74 : 2,581.20 = 1,084.64 : x
2. Step 2: Convert to fraction form
   1,870.74/2,581.20 = 1,084.64/x
3. Step 3: Cross multiply
   1,870.74x = 2,581.20 × 1,084.64
4. Step 4: Simplify right side
   1,870.74x = 2,799,672.77
5. Step 5: Solve for x
   x = 2,799,672.77/1,870.74
6. Step 6: Final answer
   x = 1,496.56