Finding the Fourth Proportional to 1,426.64, 1,971.49 and 1,029.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.64 : 1,971.49 = 1,029.61 : x
2. Step 2: Convert to fraction form
   1,426.64/1,971.49 = 1,029.61/x
3. Step 3: Cross multiply
   1,426.64x = 1,971.49 × 1,029.61
4. Step 4: Simplify right side
   1,426.64x = 2,029,858.32
5. Step 5: Solve for x
   x = 2,029,858.32/1,426.64
6. Step 6: Final answer
   x = 1,422.82