Finding the Fourth Proportional to 1,385.33, 2,076.25 and 692.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.33 : 2,076.25 = 692.19 : x
2. Step 2: Convert to fraction form
   1,385.33/2,076.25 = 692.19/x
3. Step 3: Cross multiply
   1,385.33x = 2,076.25 × 692.19
4. Step 4: Simplify right side
   1,385.33x = 1,437,152.57
5. Step 5: Solve for x
   x = 1,437,152.57/1,385.33
6. Step 6: Final answer
   x = 1,037.41