Finding the Fourth Proportional to 1,479.78, 2,043.72 and 1,152.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.78 : 2,043.72 = 1,152.18 : x
2. Step 2: Convert to fraction form
   1,479.78/2,043.72 = 1,152.18/x
3. Step 3: Cross multiply
   1,479.78x = 2,043.72 × 1,152.18
4. Step 4: Simplify right side
   1,479.78x = 2,354,733.31
5. Step 5: Solve for x
   x = 2,354,733.31/1,479.78
6. Step 6: Final answer
   x = 1,591.27