Finding the Fourth Proportional to 1,014.78, 1,527.70 and 692.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.78 : 1,527.70 = 692.18 : x
2. Step 2: Convert to fraction form
   1,014.78/1,527.70 = 692.18/x
3. Step 3: Cross multiply
   1,014.78x = 1,527.70 × 692.18
4. Step 4: Simplify right side
   1,014.78x = 1,057,443.39
5. Step 5: Solve for x
   x = 1,057,443.39/1,014.78
6. Step 6: Final answer
   x = 1,042.04