Finding the Fourth Proportional to 1,809.08, 2,496.52 and 1,012.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.08 : 2,496.52 = 1,012.42 : x
2. Step 2: Convert to fraction form
   1,809.08/2,496.52 = 1,012.42/x
3. Step 3: Cross multiply
   1,809.08x = 2,496.52 × 1,012.42
4. Step 4: Simplify right side
   1,809.08x = 2,527,526.78
5. Step 5: Solve for x
   x = 2,527,526.78/1,809.08
6. Step 6: Final answer
   x = 1,397.13