Finding the Fourth Proportional to 1,958.08, 2,935.72 and 917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,958.08 : 2,935.72 = 917.50 : x
2. Step 2: Convert to fraction form
   1,958.08/2,935.72 = 917.50/x
3. Step 3: Cross multiply
   1,958.08x = 2,935.72 × 917.50
4. Step 4: Simplify right side
   1,958.08x = 2,693,523.10
5. Step 5: Solve for x
   x = 2,693,523.10/1,958.08
6. Step 6: Final answer
   x = 1,375.59