Finding the Fourth Proportional to 1,406.88, 2,108.90 and 1,043.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.88 : 2,108.90 = 1,043.29 : x
2. Step 2: Convert to fraction form
   1,406.88/2,108.90 = 1,043.29/x
3. Step 3: Cross multiply
   1,406.88x = 2,108.90 × 1,043.29
4. Step 4: Simplify right side
   1,406.88x = 2,200,199.53
5. Step 5: Solve for x
   x = 2,200,199.53/1,406.88
6. Step 6: Final answer
   x = 1,563.89