Finding the Fourth Proportional to 1,981.34, 2,972.06 and 748.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.34 : 2,972.06 = 748.52 : x
2. Step 2: Convert to fraction form
   1,981.34/2,972.06 = 748.52/x
3. Step 3: Cross multiply
   1,981.34x = 2,972.06 × 748.52
4. Step 4: Simplify right side
   1,981.34x = 2,224,646.35
5. Step 5: Solve for x
   x = 2,224,646.35/1,981.34
6. Step 6: Final answer
   x = 1,122.80