Finding the Fourth Proportional to 2,731.08, 4,096.72 and 783.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,731.08 : 4,096.72 = 783.30 : x
2. Step 2: Convert to fraction form
   2,731.08/4,096.72 = 783.30/x
3. Step 3: Cross multiply
   2,731.08x = 4,096.72 × 783.30
4. Step 4: Simplify right side
   2,731.08x = 3,208,960.78
5. Step 5: Solve for x
   x = 3,208,960.78/2,731.08
6. Step 6: Final answer
   x = 1,174.98