Finding the Fourth Proportional to 1,129.55, 1,560.56 and 1,068.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129.55 : 1,560.56 = 1,068.03 : x
2. Step 2: Convert to fraction form
   1,129.55/1,560.56 = 1,068.03/x
3. Step 3: Cross multiply
   1,129.55x = 1,560.56 × 1,068.03
4. Step 4: Simplify right side
   1,129.55x = 1,666,719.56
5. Step 5: Solve for x
   x = 1,666,719.56/1,129.55
6. Step 6: Final answer
   x = 1,475.57