Finding the Fourth Proportional to 2,061.50, 3,091.95 and 762.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.50 : 3,091.95 = 762.74 : x
2. Step 2: Convert to fraction form
   2,061.50/3,091.95 = 762.74/x
3. Step 3: Cross multiply
   2,061.50x = 3,091.95 × 762.74
4. Step 4: Simplify right side
   2,061.50x = 2,358,353.94
5. Step 5: Solve for x
   x = 2,358,353.94/2,061.50
6. Step 6: Final answer
   x = 1,144.00