Finding the Fourth Proportional to 2,877.72, 4,316.84 and 929.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.72 : 4,316.84 = 929.96 : x
2. Step 2: Convert to fraction form
   2,877.72/4,316.84 = 929.96/x
3. Step 3: Cross multiply
   2,877.72x = 4,316.84 × 929.96
4. Step 4: Simplify right side
   2,877.72x = 4,014,488.53
5. Step 5: Solve for x
   x = 4,014,488.53/2,877.72
6. Step 6: Final answer
   x = 1,395.02