Finding the Fourth Proportional to 1,445.28, 1,993.67 and 914.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.28 : 1,993.67 = 914.00 : x
2. Step 2: Convert to fraction form
   1,445.28/1,993.67 = 914.00/x
3. Step 3: Cross multiply
   1,445.28x = 1,993.67 × 914.00
4. Step 4: Simplify right side
   1,445.28x = 1,822,214.17
5. Step 5: Solve for x
   x = 1,822,214.17/1,445.28
6. Step 6: Final answer
   x = 1,260.80