Finding the Fourth Proportional to 2,861.61, 4,287.23 and 2,402.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.61 : 4,287.23 = 2,402.34 : x
2. Step 2: Convert to fraction form
   2,861.61/4,287.23 = 2,402.34/x
3. Step 3: Cross multiply
   2,861.61x = 4,287.23 × 2,402.34
4. Step 4: Simplify right side
   2,861.61x = 10,299,384.12
5. Step 5: Solve for x
   x = 10,299,384.12/2,861.61
6. Step 6: Final answer
   x = 3,599.16