Finding the Fourth Proportional to 4,300.31, 6,451.55 and 1,222.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,300.31 : 6,451.55 = 1,222.31 : x
2. Step 2: Convert to fraction form
   4,300.31/6,451.55 = 1,222.31/x
3. Step 3: Cross multiply
   4,300.31x = 6,451.55 × 1,222.31
4. Step 4: Simplify right side
   4,300.31x = 7,885,813.27
5. Step 5: Solve for x
   x = 7,885,813.27/4,300.31
6. Step 6: Final answer
   x = 1,833.78