Finding the Fourth Proportional to 1,980.91, 2,969.75 and 747.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.91 : 2,969.75 = 747.62 : x
2. Step 2: Convert to fraction form
   1,980.91/2,969.75 = 747.62/x
3. Step 3: Cross multiply
   1,980.91x = 2,969.75 × 747.62
4. Step 4: Simplify right side
   1,980.91x = 2,220,233.33
5. Step 5: Solve for x
   x = 2,220,233.33/1,980.91
6. Step 6: Final answer
   x = 1,120.81