Finding the Fourth Proportional to 1,561.59, 2,152.89 and 1,295.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.59 : 2,152.89 = 1,295.06 : x
2. Step 2: Convert to fraction form
   1,561.59/2,152.89 = 1,295.06/x
3. Step 3: Cross multiply
   1,561.59x = 2,152.89 × 1,295.06
4. Step 4: Simplify right side
   1,561.59x = 2,788,110.96
5. Step 5: Solve for x
   x = 2,788,110.96/1,561.59
6. Step 6: Final answer
   x = 1,785.43