Finding the Fourth Proportional to 1,981.77, 2,971.83 and 748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.77 : 2,971.83 = 748.50 : x
2. Step 2: Convert to fraction form
   1,981.77/2,971.83 = 748.50/x
3. Step 3: Cross multiply
   1,981.77x = 2,971.83 × 748.50
4. Step 4: Simplify right side
   1,981.77x = 2,224,414.76
5. Step 5: Solve for x
   x = 2,224,414.76/1,981.77
6. Step 6: Final answer
   x = 1,122.44