Finding the Fourth Proportional to 1,445.33, 1,994.74 and 886.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.33 : 1,994.74 = 886.18 : x
2. Step 2: Convert to fraction form
   1,445.33/1,994.74 = 886.18/x
3. Step 3: Cross multiply
   1,445.33x = 1,994.74 × 886.18
4. Step 4: Simplify right side
   1,445.33x = 1,767,691.49
5. Step 5: Solve for x
   x = 1,767,691.49/1,445.33
6. Step 6: Final answer
   x = 1,223.03