Finding the Fourth Proportional to 1,445.74, 1,993.53 and 948.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.74 : 1,993.53 = 948.58 : x
2. Step 2: Convert to fraction form
   1,445.74/1,993.53 = 948.58/x
3. Step 3: Cross multiply
   1,445.74x = 1,993.53 × 948.58
4. Step 4: Simplify right side
   1,445.74x = 1,891,022.69
5. Step 5: Solve for x
   x = 1,891,022.69/1,445.74
6. Step 6: Final answer
   x = 1,308.00