Finding the Fourth Proportional to 2,877.77, 4,315.72 and 929.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.77 : 4,315.72 = 929.52 : x
2. Step 2: Convert to fraction form
   2,877.77/4,315.72 = 929.52/x
3. Step 3: Cross multiply
   2,877.77x = 4,315.72 × 929.52
4. Step 4: Simplify right side
   2,877.77x = 4,011,543.41
5. Step 5: Solve for x
   x = 4,011,543.41/2,877.77
6. Step 6: Final answer
   x = 1,393.98