Finding the Fourth Proportional to 1,870.94, 2,580.72 and 1,084.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.94 : 2,580.72 = 1,084.70 : x
2. Step 2: Convert to fraction form
   1,870.94/2,580.72 = 1,084.70/x
3. Step 3: Cross multiply
   1,870.94x = 2,580.72 × 1,084.70
4. Step 4: Simplify right side
   1,870.94x = 2,799,306.98
5. Step 5: Solve for x
   x = 2,799,306.98/1,870.94
6. Step 6: Final answer
   x = 1,496.20