Finding the Fourth Proportional to 1,561.55, 2,152.98 and 1,141.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.55 : 2,152.98 = 1,141.56 : x
2. Step 2: Convert to fraction form
   1,561.55/2,152.98 = 1,141.56/x
3. Step 3: Cross multiply
   1,561.55x = 2,152.98 × 1,141.56
4. Step 4: Simplify right side
   1,561.55x = 2,457,755.85
5. Step 5: Solve for x
   x = 2,457,755.85/1,561.55
6. Step 6: Final answer
   x = 1,573.93