Finding the Fourth Proportional to 1,854.69, 2,559.59 and 1,047.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.69 : 2,559.59 = 1,047.16 : x
2. Step 2: Convert to fraction form
   1,854.69/2,559.59 = 1,047.16/x
3. Step 3: Cross multiply
   1,854.69x = 2,559.59 × 1,047.16
4. Step 4: Simplify right side
   1,854.69x = 2,680,300.26
5. Step 5: Solve for x
   x = 2,680,300.26/1,854.69
6. Step 6: Final answer
   x = 1,445.15