Finding the Fourth Proportional to 1,809.06, 2,495.62 and 1,052.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.06 : 2,495.62 = 1,052.78 : x
2. Step 2: Convert to fraction form
   1,809.06/2,495.62 = 1,052.78/x
3. Step 3: Cross multiply
   1,809.06x = 2,495.62 × 1,052.78
4. Step 4: Simplify right side
   1,809.06x = 2,627,338.82
5. Step 5: Solve for x
   x = 2,627,338.82/1,809.06
6. Step 6: Final answer
   x = 1,452.32