Finding the Fourth Proportional to 2,078.57, 3,118.29 and 692.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.57 : 3,118.29 = 692.01 : x
2. Step 2: Convert to fraction form
   2,078.57/3,118.29 = 692.01/x
3. Step 3: Cross multiply
   2,078.57x = 3,118.29 × 692.01
4. Step 4: Simplify right side
   2,078.57x = 2,157,887.86
5. Step 5: Solve for x
   x = 2,157,887.86/2,078.57
6. Step 6: Final answer
   x = 1,038.16