Finding the Fourth Proportional to 4,721.30, 7,081.49 and 1,434.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,721.30 : 7,081.49 = 1,434.42 : x
2. Step 2: Convert to fraction form
   4,721.30/7,081.49 = 1,434.42/x
3. Step 3: Cross multiply
   4,721.30x = 7,081.49 × 1,434.42
4. Step 4: Simplify right side
   4,721.30x = 10,157,823.71
5. Step 5: Solve for x
   x = 10,157,823.71/4,721.30
6. Step 6: Final answer
   x = 2,151.49