Finding the Fourth Proportional to 1,736.07, 2,395.72 and 990.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.07 : 2,395.72 = 990.27 : x
2. Step 2: Convert to fraction form
   1,736.07/2,395.72 = 990.27/x
3. Step 3: Cross multiply
   1,736.07x = 2,395.72 × 990.27
4. Step 4: Simplify right side
   1,736.07x = 2,372,404.69
5. Step 5: Solve for x
   x = 2,372,404.69/1,736.07
6. Step 6: Final answer
   x = 1,366.54