Finding the Fourth Proportional to 1,225.94, 1,692.42 and 760.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.94 : 1,692.42 = 760.46 : x
2. Step 2: Convert to fraction form
   1,225.94/1,692.42 = 760.46/x
3. Step 3: Cross multiply
   1,225.94x = 1,692.42 × 760.46
4. Step 4: Simplify right side
   1,225.94x = 1,287,017.71
5. Step 5: Solve for x
   x = 1,287,017.71/1,225.94
6. Step 6: Final answer
   x = 1,049.82