Finding the Fourth Proportional to 1,490.05, 2,234.61 and 1,030.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.05 : 2,234.61 = 1,030.78 : x
2. Step 2: Convert to fraction form
   1,490.05/2,234.61 = 1,030.78/x
3. Step 3: Cross multiply
   1,490.05x = 2,234.61 × 1,030.78
4. Step 4: Simplify right side
   1,490.05x = 2,303,380.12
5. Step 5: Solve for x
   x = 2,303,380.12/1,490.05
6. Step 6: Final answer
   x = 1,545.85