Finding the Fourth Proportional to 1,050.42, 1,567.15 and 1,012.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.42 : 1,567.15 = 1,012.60 : x
2. Step 2: Convert to fraction form
   1,050.42/1,567.15 = 1,012.60/x
3. Step 3: Cross multiply
   1,050.42x = 1,567.15 × 1,012.60
4. Step 4: Simplify right side
   1,050.42x = 1,586,895.52
5. Step 5: Solve for x
   x = 1,586,895.52/1,050.42
6. Step 6: Final answer
   x = 1,510.73