Finding the Fourth Proportional to 2,779.52, 4,168.88 and 1,047.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,779.52 : 4,168.88 = 1,047.76 : x
2. Step 2: Convert to fraction form
   2,779.52/4,168.88 = 1,047.76/x
3. Step 3: Cross multiply
   2,779.52x = 4,168.88 × 1,047.76
4. Step 4: Simplify right side
   2,779.52x = 4,367,985.71
5. Step 5: Solve for x
   x = 4,367,985.71/2,779.52
6. Step 6: Final answer
   x = 1,571.49