Finding the Fourth Proportional to 1,861.52, 2,568.98 and 1,064.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.52 : 2,568.98 = 1,064.98 : x
2. Step 2: Convert to fraction form
   1,861.52/2,568.98 = 1,064.98/x
3. Step 3: Cross multiply
   1,861.52x = 2,568.98 × 1,064.98
4. Step 4: Simplify right side
   1,861.52x = 2,735,912.32
5. Step 5: Solve for x
   x = 2,735,912.32/1,861.52
6. Step 6: Final answer
   x = 1,469.72