Finding the Fourth Proportional to 1,619.46, 2,234.52 and 1,029.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619.46 : 2,234.52 = 1,029.78 : x
2. Step 2: Convert to fraction form
   1,619.46/2,234.52 = 1,029.78/x
3. Step 3: Cross multiply
   1,619.46x = 2,234.52 × 1,029.78
4. Step 4: Simplify right side
   1,619.46x = 2,301,064.01
5. Step 5: Solve for x
   x = 2,301,064.01/1,619.46
6. Step 6: Final answer
   x = 1,420.88