Finding the Fourth Proportional to 3,695.12, 5,098.62 and 2,123.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,695.12 : 5,098.62 = 2,123.30 : x
2. Step 2: Convert to fraction form
   3,695.12/5,098.62 = 2,123.30/x
3. Step 3: Cross multiply
   3,695.12x = 5,098.62 × 2,123.30
4. Step 4: Simplify right side
   3,695.12x = 10,825,899.85
5. Step 5: Solve for x
   x = 10,825,899.85/3,695.12
6. Step 6: Final answer
   x = 2,929.78