Finding the Fourth Proportional to 1,945.59, 2,684.88 and 1,061.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.59 : 2,684.88 = 1,061.40 : x
2. Step 2: Convert to fraction form
   1,945.59/2,684.88 = 1,061.40/x
3. Step 3: Cross multiply
   1,945.59x = 2,684.88 × 1,061.40
4. Step 4: Simplify right side
   1,945.59x = 2,849,741.70
5. Step 5: Solve for x
   x = 2,849,741.70/1,945.59
6. Step 6: Final answer
   x = 1,464.72