Finding the Fourth Proportional to 1,692.62, 2,535.32 and 813.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692.62 : 2,535.32 = 813.83 : x
2. Step 2: Convert to fraction form
   1,692.62/2,535.32 = 813.83/x
3. Step 3: Cross multiply
   1,692.62x = 2,535.32 × 813.83
4. Step 4: Simplify right side
   1,692.62x = 2,063,302.73
5. Step 5: Solve for x
   x = 2,063,302.73/1,692.62
6. Step 6: Final answer
   x = 1,219.00