Finding the Fourth Proportional to 1,736.43, 2,396.06 and 990.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.43 : 2,396.06 = 990.27 : x
2. Step 2: Convert to fraction form
   1,736.43/2,396.06 = 990.27/x
3. Step 3: Cross multiply
   1,736.43x = 2,396.06 × 990.27
4. Step 4: Simplify right side
   1,736.43x = 2,372,746.34
5. Step 5: Solve for x
   x = 2,372,746.34/1,736.43
6. Step 6: Final answer
   x = 1,366.45