Finding the Fourth Proportional to 2,079.86, 3,118.90 and 692.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.86 : 3,118.90 = 692.82 : x
2. Step 2: Convert to fraction form
   2,079.86/3,118.90 = 692.82/x
3. Step 3: Cross multiply
   2,079.86x = 3,118.90 × 692.82
4. Step 4: Simplify right side
   2,079.86x = 2,160,836.30
5. Step 5: Solve for x
   x = 2,160,836.30/2,079.86
6. Step 6: Final answer
   x = 1,038.93