Finding the Fourth Proportional to 2,078.51, 3,118.23 and 692.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.51 : 3,118.23 = 692.01 : x
2. Step 2: Convert to fraction form
   2,078.51/3,118.23 = 692.01/x
3. Step 3: Cross multiply
   2,078.51x = 3,118.23 × 692.01
4. Step 4: Simplify right side
   2,078.51x = 2,157,846.34
5. Step 5: Solve for x
   x = 2,157,846.34/2,078.51
6. Step 6: Final answer
   x = 1,038.17