Finding the Fourth Proportional to 1,870.49, 2,580.56 and 1,084.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.49 : 2,580.56 = 1,084.39 : x
2. Step 2: Convert to fraction form
   1,870.49/2,580.56 = 1,084.39/x
3. Step 3: Cross multiply
   1,870.49x = 2,580.56 × 1,084.39
4. Step 4: Simplify right side
   1,870.49x = 2,798,325.65
5. Step 5: Solve for x
   x = 2,798,325.65/1,870.49
6. Step 6: Final answer
   x = 1,496.04