Finding the Fourth Proportional to 3,100.65, 4,651.37 and 1,020.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.65 : 4,651.37 = 1,020.89 : x
2. Step 2: Convert to fraction form
   3,100.65/4,651.37 = 1,020.89/x
3. Step 3: Cross multiply
   3,100.65x = 4,651.37 × 1,020.89
4. Step 4: Simplify right side
   3,100.65x = 4,748,508.76
5. Step 5: Solve for x
   x = 4,748,508.76/3,100.65
6. Step 6: Final answer
   x = 1,531.46