Finding the Fourth Proportional to 2,731.98, 4,098.58 and 784.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,731.98 : 4,098.58 = 784.04 : x
2. Step 2: Convert to fraction form
   2,731.98/4,098.58 = 784.04/x
3. Step 3: Cross multiply
   2,731.98x = 4,098.58 × 784.04
4. Step 4: Simplify right side
   2,731.98x = 3,213,428.21
5. Step 5: Solve for x
   x = 3,213,428.21/2,731.98
6. Step 6: Final answer
   x = 1,176.23