Finding the Fourth Proportional to 1,807.52, 2,494.16 and 1,021.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.52 : 2,494.16 = 1,021.48 : x
2. Step 2: Convert to fraction form
   1,807.52/2,494.16 = 1,021.48/x
3. Step 3: Cross multiply
   1,807.52x = 2,494.16 × 1,021.48
4. Step 4: Simplify right side
   1,807.52x = 2,547,734.56
5. Step 5: Solve for x
   x = 2,547,734.56/1,807.52
6. Step 6: Final answer
   x = 1,409.52