Finding the Fourth Proportional to 1,045.15, 1,558.50 and 1,035.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.15 : 1,558.50 = 1,035.78 : x
2. Step 2: Convert to fraction form
   1,045.15/1,558.50 = 1,035.78/x
3. Step 3: Cross multiply
   1,045.15x = 1,558.50 × 1,035.78
4. Step 4: Simplify right side
   1,045.15x = 1,614,250.16
5. Step 5: Solve for x
   x = 1,614,250.16/1,045.15
6. Step 6: Final answer
   x = 1,544.52