Finding the Fourth Proportional to 2,030.74, 3,047.46 and 991.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.74 : 3,047.46 = 991.24 : x
2. Step 2: Convert to fraction form
   2,030.74/3,047.46 = 991.24/x
3. Step 3: Cross multiply
   2,030.74x = 3,047.46 × 991.24
4. Step 4: Simplify right side
   2,030.74x = 3,020,764.25
5. Step 5: Solve for x
   x = 3,020,764.25/2,030.74
6. Step 6: Final answer
   x = 1,487.52