Finding the Fourth Proportional to 2,858.79, 3,941.35 and 2,061.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.79 : 3,941.35 = 2,061.45 : x
2. Step 2: Convert to fraction form
   2,858.79/3,941.35 = 2,061.45/x
3. Step 3: Cross multiply
   2,858.79x = 3,941.35 × 2,061.45
4. Step 4: Simplify right side
   2,858.79x = 8,124,895.96
5. Step 5: Solve for x
   x = 8,124,895.96/2,858.79
6. Step 6: Final answer
   x = 2,842.08