Finding the Fourth Proportional to 2,012.60, 3,020.52 and 1,038.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.60 : 3,020.52 = 1,038.98 : x
2. Step 2: Convert to fraction form
   2,012.60/3,020.52 = 1,038.98/x
3. Step 3: Cross multiply
   2,012.60x = 3,020.52 × 1,038.98
4. Step 4: Simplify right side
   2,012.60x = 3,138,259.87
5. Step 5: Solve for x
   x = 3,138,259.87/2,012.60
6. Step 6: Final answer
   x = 1,559.31