Finding the Fourth Proportional to 3,089.34, 4,633.20 and 1,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,089.34 : 4,633.20 = 1,142.10 : x
2. Step 2: Convert to fraction form
   3,089.34/4,633.20 = 1,142.10/x
3. Step 3: Cross multiply
   3,089.34x = 4,633.20 × 1,142.10
4. Step 4: Simplify right side
   3,089.34x = 5,291,577.72
5. Step 5: Solve for x
   x = 5,291,577.72/3,089.34
6. Step 6: Final answer
   x = 1,712.85