Finding the Fourth Proportional to 3,468.10, 5,202.43 and 1,128.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,468.10 : 5,202.43 = 1,128.05 : x
2. Step 2: Convert to fraction form
   3,468.10/5,202.43 = 1,128.05/x
3. Step 3: Cross multiply
   3,468.10x = 5,202.43 × 1,128.05
4. Step 4: Simplify right side
   3,468.10x = 5,868,575.15
5. Step 5: Solve for x
   x = 5,868,575.15/3,468.10
6. Step 6: Final answer
   x = 1,692.16