Finding the Fourth Proportional to 1,445.64, 1,995.18 and 886.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.64 : 1,995.18 = 886.14 : x
2. Step 2: Convert to fraction form
   1,445.64/1,995.18 = 886.14/x
3. Step 3: Cross multiply
   1,445.64x = 1,995.18 × 886.14
4. Step 4: Simplify right side
   1,445.64x = 1,768,008.81
5. Step 5: Solve for x
   x = 1,768,008.81/1,445.64
6. Step 6: Final answer
   x = 1,222.99