Finding the Fourth Proportional to 3,685.42, 5,086.06 and 2,113.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.42 : 5,086.06 = 2,113.52 : x
2. Step 2: Convert to fraction form
   3,685.42/5,086.06 = 2,113.52/x
3. Step 3: Cross multiply
   3,685.42x = 5,086.06 × 2,113.52
4. Step 4: Simplify right side
   3,685.42x = 10,749,489.53
5. Step 5: Solve for x
   x = 10,749,489.53/3,685.42
6. Step 6: Final answer
   x = 2,916.76