Finding the Fourth Proportional to 3,089.72, 4,635.57 and 1,142.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,089.72 : 4,635.57 = 1,142.07 : x
2. Step 2: Convert to fraction form
   3,089.72/4,635.57 = 1,142.07/x
3. Step 3: Cross multiply
   3,089.72x = 4,635.57 × 1,142.07
4. Step 4: Simplify right side
   3,089.72x = 5,294,145.43
5. Step 5: Solve for x
   x = 5,294,145.43/3,089.72
6. Step 6: Final answer
   x = 1,713.47