Finding the Fourth Proportional to 1,958.50, 2,938.20 and 932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,958.50 : 2,938.20 = 932.50 : x
2. Step 2: Convert to fraction form
   1,958.50/2,938.20 = 932.50/x
3. Step 3: Cross multiply
   1,958.50x = 2,938.20 × 932.50
4. Step 4: Simplify right side
   1,958.50x = 2,739,871.50
5. Step 5: Solve for x
   x = 2,739,871.50/1,958.50
6. Step 6: Final answer
   x = 1,398.96