Finding the Fourth Proportional to 1,870.30, 2,580.98 and 1,084.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.30 : 2,580.98 = 1,084.33 : x
2. Step 2: Convert to fraction form
   1,870.30/2,580.98 = 1,084.33/x
3. Step 3: Cross multiply
   1,870.30x = 2,580.98 × 1,084.33
4. Step 4: Simplify right side
   1,870.30x = 2,798,634.04
5. Step 5: Solve for x
   x = 2,798,634.04/1,870.30
6. Step 6: Final answer
   x = 1,496.36