Finding the Fourth Proportional to 4,753.78, 7,129.23 and 1,422.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,753.78 : 7,129.23 = 1,422.25 : x
2. Step 2: Convert to fraction form
   4,753.78/7,129.23 = 1,422.25/x
3. Step 3: Cross multiply
   4,753.78x = 7,129.23 × 1,422.25
4. Step 4: Simplify right side
   4,753.78x = 10,139,547.37
5. Step 5: Solve for x
   x = 10,139,547.37/4,753.78
6. Step 6: Final answer
   x = 2,132.94