Finding the Fourth Proportional to 2,281.79, 3,146.00 and 1,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,281.79 : 3,146.00 = 1,861.72 : x
2. Step 2: Convert to fraction form
   2,281.79/3,146.00 = 1,861.72/x
3. Step 3: Cross multiply
   2,281.79x = 3,146.00 × 1,861.72
4. Step 4: Simplify right side
   2,281.79x = 5,856,953.95
5. Step 5: Solve for x
   x = 5,856,953.95/2,281.79
6. Step 6: Final answer
   x = 2,566.82