Finding the Fourth Proportional to 2,877.69, 4,315.62 and 929.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.69 : 4,315.62 = 929.43 : x
2. Step 2: Convert to fraction form
   2,877.69/4,315.62 = 929.43/x
3. Step 3: Cross multiply
   2,877.69x = 4,315.62 × 929.43
4. Step 4: Simplify right side
   2,877.69x = 4,011,066.70
5. Step 5: Solve for x
   x = 4,011,066.70/2,877.69
6. Step 6: Final answer
   x = 1,393.85