Finding the Fourth Proportional to 1,513.85, 2,272.59 and 692.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.85 : 2,272.59 = 692.33 : x
2. Step 2: Convert to fraction form
   1,513.85/2,272.59 = 692.33/x
3. Step 3: Cross multiply
   1,513.85x = 2,272.59 × 692.33
4. Step 4: Simplify right side
   1,513.85x = 1,573,370.87
5. Step 5: Solve for x
   x = 1,573,370.87/1,513.85
6. Step 6: Final answer
   x = 1,039.32