Finding the Fourth Proportional to 1,608.53, 2,415.51 and 1,061.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.53 : 2,415.51 = 1,061.78 : x
2. Step 2: Convert to fraction form
   1,608.53/2,415.51 = 1,061.78/x
3. Step 3: Cross multiply
   1,608.53x = 2,415.51 × 1,061.78
4. Step 4: Simplify right side
   1,608.53x = 2,564,728.13
5. Step 5: Solve for x
   x = 2,564,728.13/1,608.53
6. Step 6: Final answer
   x = 1,594.46