Finding the Fourth Proportional to 1,945.76, 2,685.09 and 1,061.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.76 : 2,685.09 = 1,061.55 : x
2. Step 2: Convert to fraction form
   1,945.76/2,685.09 = 1,061.55/x
3. Step 3: Cross multiply
   1,945.76x = 2,685.09 × 1,061.55
4. Step 4: Simplify right side
   1,945.76x = 2,850,357.29
5. Step 5: Solve for x
   x = 2,850,357.29/1,945.76
6. Step 6: Final answer
   x = 1,464.91