Finding the Fourth Proportional to 1,870.12, 2,580.80 and 1,084.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.12 : 2,580.80 = 1,084.24 : x
2. Step 2: Convert to fraction form
   1,870.12/2,580.80 = 1,084.24/x
3. Step 3: Cross multiply
   1,870.12x = 2,580.80 × 1,084.24
4. Step 4: Simplify right side
   1,870.12x = 2,798,206.59
5. Step 5: Solve for x
   x = 2,798,206.59/1,870.12
6. Step 6: Final answer
   x = 1,496.27