Finding the Fourth Proportional to 1,422.52, 2,134.76 and 692.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.52 : 2,134.76 = 692.62 : x
2. Step 2: Convert to fraction form
   1,422.52/2,134.76 = 692.62/x
3. Step 3: Cross multiply
   1,422.52x = 2,134.76 × 692.62
4. Step 4: Simplify right side
   1,422.52x = 1,478,577.47
5. Step 5: Solve for x
   x = 1,478,577.47/1,422.52
6. Step 6: Final answer
   x = 1,039.41