Finding the Fourth Proportional to 1,705.59, 2,353.05 and 997.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.59 : 2,353.05 = 997.25 : x
2. Step 2: Convert to fraction form
   1,705.59/2,353.05 = 997.25/x
3. Step 3: Cross multiply
   1,705.59x = 2,353.05 × 997.25
4. Step 4: Simplify right side
   1,705.59x = 2,346,567.35
5. Step 5: Solve for x
   x = 2,346,567.35/1,705.59
6. Step 6: Final answer
   x = 1,375.81