Finding the Fourth Proportional to 1,453.89, 2,006.31 and 790.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.89 : 2,006.31 = 790.74 : x
2. Step 2: Convert to fraction form
   1,453.89/2,006.31 = 790.74/x
3. Step 3: Cross multiply
   1,453.89x = 2,006.31 × 790.74
4. Step 4: Simplify right side
   1,453.89x = 1,586,479.03
5. Step 5: Solve for x
   x = 1,586,479.03/1,453.89
6. Step 6: Final answer
   x = 1,091.19