Finding the Fourth Proportional to 1,851.39, 2,554.86 and 1,065.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.39 : 2,554.86 = 1,065.39 : x
2. Step 2: Convert to fraction form
   1,851.39/2,554.86 = 1,065.39/x
3. Step 3: Cross multiply
   1,851.39x = 2,554.86 × 1,065.39
4. Step 4: Simplify right side
   1,851.39x = 2,721,922.30
5. Step 5: Solve for x
   x = 2,721,922.30/1,851.39
6. Step 6: Final answer
   x = 1,470.20