Finding the Fourth Proportional to 3,798.66, 5,690.10 and 3,521.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,798.66 : 5,690.10 = 3,521.82 : x
2. Step 2: Convert to fraction form
   3,798.66/5,690.10 = 3,521.82/x
3. Step 3: Cross multiply
   3,798.66x = 5,690.10 × 3,521.82
4. Step 4: Simplify right side
   3,798.66x = 20,039,507.98
5. Step 5: Solve for x
   x = 20,039,507.98/3,798.66
6. Step 6: Final answer
   x = 5,275.42