Finding the Fourth Proportional to 3,100.29, 4,648.87 and 1,020.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.29 : 4,648.87 = 1,020.05 : x
2. Step 2: Convert to fraction form
   3,100.29/4,648.87 = 1,020.05/x
3. Step 3: Cross multiply
   3,100.29x = 4,648.87 × 1,020.05
4. Step 4: Simplify right side
   3,100.29x = 4,742,075.31
5. Step 5: Solve for x
   x = 4,742,075.31/3,100.29
6. Step 6: Final answer
   x = 1,529.56