Finding the Fourth Proportional to 1,435.50, 1,979.91 and 994.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.50 : 1,979.91 = 994.14 : x
2. Step 2: Convert to fraction form
   1,435.50/1,979.91 = 994.14/x
3. Step 3: Cross multiply
   1,435.50x = 1,979.91 × 994.14
4. Step 4: Simplify right side
   1,435.50x = 1,968,307.73
5. Step 5: Solve for x
   x = 1,968,307.73/1,435.50
6. Step 6: Final answer
   x = 1,371.17