Finding the Fourth Proportional to 1,736.37, 2,395.98 and 990.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.37 : 2,395.98 = 990.56 : x
2. Step 2: Convert to fraction form
   1,736.37/2,395.98 = 990.56/x
3. Step 3: Cross multiply
   1,736.37x = 2,395.98 × 990.56
4. Step 4: Simplify right side
   1,736.37x = 2,373,367.94
5. Step 5: Solve for x
   x = 2,373,367.94/1,736.37
6. Step 6: Final answer
   x = 1,366.86