Finding the Fourth Proportional to 1,478.23, 2,026.73 and 1,451.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.23 : 2,026.73 = 1,451.89 : x
2. Step 2: Convert to fraction form
   1,478.23/2,026.73 = 1,451.89/x
3. Step 3: Cross multiply
   1,478.23x = 2,026.73 × 1,451.89
4. Step 4: Simplify right side
   1,478.23x = 2,942,589.02
5. Step 5: Solve for x
   x = 2,942,589.02/1,478.23
6. Step 6: Final answer
   x = 1,990.62