Finding the Fourth Proportional to 2,931.30, 4,049.82 and 2,698.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.30 : 4,049.82 = 2,698.02 : x
2. Step 2: Convert to fraction form
   2,931.30/4,049.82 = 2,698.02/x
3. Step 3: Cross multiply
   2,931.30x = 4,049.82 × 2,698.02
4. Step 4: Simplify right side
   2,931.30x = 10,926,495.36
5. Step 5: Solve for x
   x = 10,926,495.36/2,931.30
6. Step 6: Final answer
   x = 3,727.53