Finding the Fourth Proportional to 3,345.42, 5,020.43 and 1,154.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.42 : 5,020.43 = 1,154.15 : x
2. Step 2: Convert to fraction form
   3,345.42/5,020.43 = 1,154.15/x
3. Step 3: Cross multiply
   3,345.42x = 5,020.43 × 1,154.15
4. Step 4: Simplify right side
   3,345.42x = 5,794,323.73
5. Step 5: Solve for x
   x = 5,794,323.73/3,345.42
6. Step 6: Final answer
   x = 1,732.02