Finding the Fourth Proportional to 4,333.72, 6,499.42 and 1,213.54

Step by Step Solution

1. Step 1: Write the proportion equation
   4,333.72 : 6,499.42 = 1,213.54 : x
2. Step 2: Convert to fraction form
   4,333.72/6,499.42 = 1,213.54/x
3. Step 3: Cross multiply
   4,333.72x = 6,499.42 × 1,213.54
4. Step 4: Simplify right side
   4,333.72x = 7,887,306.15
5. Step 5: Solve for x
   x = 7,887,306.15/4,333.72
6. Step 6: Final answer
   x = 1,819.99