Finding the Fourth Proportional to 1,980.82, 2,972.72 and 749.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.82 : 2,972.72 = 749.35 : x
2. Step 2: Convert to fraction form
   1,980.82/2,972.72 = 749.35/x
3. Step 3: Cross multiply
   1,980.82x = 2,972.72 × 749.35
4. Step 4: Simplify right side
   1,980.82x = 2,227,607.73
5. Step 5: Solve for x
   x = 2,227,607.73/1,980.82
6. Step 6: Final answer
   x = 1,124.59