Finding the Fourth Proportional to 1,872.88, 2,583.72 and 1,479.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.88 : 2,583.72 = 1,479.28 : x
2. Step 2: Convert to fraction form
   1,872.88/2,583.72 = 1,479.28/x
3. Step 3: Cross multiply
   1,872.88x = 2,583.72 × 1,479.28
4. Step 4: Simplify right side
   1,872.88x = 3,822,045.32
5. Step 5: Solve for x
   x = 3,822,045.32/1,872.88
6. Step 6: Final answer
   x = 2,040.73