Finding the Fourth Proportional to 2,877.71, 4,316.81 and 797.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.71 : 4,316.81 = 797.72 : x
2. Step 2: Convert to fraction form
   2,877.71/4,316.81 = 797.72/x
3. Step 3: Cross multiply
   2,877.71x = 4,316.81 × 797.72
4. Step 4: Simplify right side
   2,877.71x = 3,443,580.10
5. Step 5: Solve for x
   x = 3,443,580.10/2,877.71
6. Step 6: Final answer
   x = 1,196.64