Finding the Fourth Proportional to 2,916.15, 4,373.41 and 807.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,916.15 : 4,373.41 = 807.27 : x
2. Step 2: Convert to fraction form
   2,916.15/4,373.41 = 807.27/x
3. Step 3: Cross multiply
   2,916.15x = 4,373.41 × 807.27
4. Step 4: Simplify right side
   2,916.15x = 3,530,507.49
5. Step 5: Solve for x
   x = 3,530,507.49/2,916.15
6. Step 6: Final answer
   x = 1,210.68