Finding the Fourth Proportional to 1,872.04, 2,583.88 and 1,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.04 : 2,583.88 = 1,086.56 : x
2. Step 2: Convert to fraction form
   1,872.04/2,583.88 = 1,086.56/x
3. Step 3: Cross multiply
   1,872.04x = 2,583.88 × 1,086.56
4. Step 4: Simplify right side
   1,872.04x = 2,807,540.65
5. Step 5: Solve for x
   x = 2,807,540.65/1,872.04
6. Step 6: Final answer
   x = 1,499.72