Finding the Fourth Proportional to 1,397.35, 2,096.38 and 987.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.35 : 2,096.38 = 987.29 : x
2. Step 2: Convert to fraction form
   1,397.35/2,096.38 = 987.29/x
3. Step 3: Cross multiply
   1,397.35x = 2,096.38 × 987.29
4. Step 4: Simplify right side
   1,397.35x = 2,069,735.01
5. Step 5: Solve for x
   x = 2,069,735.01/1,397.35
6. Step 6: Final answer
   x = 1,481.19