Finding the Fourth Proportional to 3,338.78, 5,009.34 and 1,030.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,338.78 : 5,009.34 = 1,030.28 : x
2. Step 2: Convert to fraction form
   3,338.78/5,009.34 = 1,030.28/x
3. Step 3: Cross multiply
   3,338.78x = 5,009.34 × 1,030.28
4. Step 4: Simplify right side
   3,338.78x = 5,161,022.82
5. Step 5: Solve for x
   x = 5,161,022.82/3,338.78
6. Step 6: Final answer
   x = 1,545.78