Finding the Fourth Proportional to 1,861.83, 2,569.56 and 1,065

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.83 : 2,569.56 = 1,065 : x
2. Step 2: Convert to fraction form
   1,861.83/2,569.56 = 1,065/x
3. Step 3: Cross multiply
   1,861.83x = 2,569.56 × 1,065
4. Step 4: Simplify right side
   1,861.83x = 2,736,581.40
5. Step 5: Solve for x
   x = 2,736,581.40/1,861.83
6. Step 6: Final answer
   x = 1,469.83