Finding the Fourth Proportional to 4,904.01, 7,351.89 and 2,128.59

Step by Step Solution

1. Step 1: Write the proportion equation
   4,904.01 : 7,351.89 = 2,128.59 : x
2. Step 2: Convert to fraction form
   4,904.01/7,351.89 = 2,128.59/x
3. Step 3: Cross multiply
   4,904.01x = 7,351.89 × 2,128.59
4. Step 4: Simplify right side
   4,904.01x = 15,649,159.54
5. Step 5: Solve for x
   x = 15,649,159.54/4,904.01
6. Step 6: Final answer
   x = 3,191.09