Finding the Fourth Proportional to 2,981.10, 4,114.72 and 1,861.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.10 : 4,114.72 = 1,861.36 : x
2. Step 2: Convert to fraction form
   2,981.10/4,114.72 = 1,861.36/x
3. Step 3: Cross multiply
   2,981.10x = 4,114.72 × 1,861.36
4. Step 4: Simplify right side
   2,981.10x = 7,658,975.22
5. Step 5: Solve for x
   x = 7,658,975.22/2,981.10
6. Step 6: Final answer
   x = 2,569.18