Finding the Fourth Proportional to 1,736.59, 2,395.90 and 990.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.59 : 2,395.90 = 990.01 : x
2. Step 2: Convert to fraction form
   1,736.59/2,395.90 = 990.01/x
3. Step 3: Cross multiply
   1,736.59x = 2,395.90 × 990.01
4. Step 4: Simplify right side
   1,736.59x = 2,371,956.49
5. Step 5: Solve for x
   x = 2,371,956.49/1,736.59
6. Step 6: Final answer
   x = 1,365.87