Finding the Fourth Proportional to 1,445.43, 1,994.86 and 948.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.43 : 1,994.86 = 948.36 : x
2. Step 2: Convert to fraction form
   1,445.43/1,994.86 = 948.36/x
3. Step 3: Cross multiply
   1,445.43x = 1,994.86 × 948.36
4. Step 4: Simplify right side
   1,445.43x = 1,891,854.10
5. Step 5: Solve for x
   x = 1,891,854.10/1,445.43
6. Step 6: Final answer
   x = 1,308.85