Finding the Fourth Proportional to 2,858.55, 3,941.01 and 2,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.55 : 3,941.01 = 2,061.20 : x
2. Step 2: Convert to fraction form
   2,858.55/3,941.01 = 2,061.20/x
3. Step 3: Cross multiply
   2,858.55x = 3,941.01 × 2,061.20
4. Step 4: Simplify right side
   2,858.55x = 8,123,209.81
5. Step 5: Solve for x
   x = 8,123,209.81/2,858.55
6. Step 6: Final answer
   x = 2,841.73