Finding the Fourth Proportional to 1,861.90, 2,568.96 and 1,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.90 : 2,568.96 = 1,233.34 : x
2. Step 2: Convert to fraction form
   1,861.90/2,568.96 = 1,233.34/x
3. Step 3: Cross multiply
   1,861.90x = 2,568.96 × 1,233.34
4. Step 4: Simplify right side
   1,861.90x = 3,168,401.13
5. Step 5: Solve for x
   x = 3,168,401.13/1,861.90
6. Step 6: Final answer
   x = 1,701.70