Finding the Fourth Proportional to 1,945.96, 2,685.42 and 1,061.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.96 : 2,685.42 = 1,061.74 : x
2. Step 2: Convert to fraction form
   1,945.96/2,685.42 = 1,061.74/x
3. Step 3: Cross multiply
   1,945.96x = 2,685.42 × 1,061.74
4. Step 4: Simplify right side
   1,945.96x = 2,851,217.83
5. Step 5: Solve for x
   x = 2,851,217.83/1,945.96
6. Step 6: Final answer
   x = 1,465.20