Finding the Fourth Proportional to 2,286.51, 3,155.16 and 1,291.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.51 : 3,155.16 = 1,291.59 : x
2. Step 2: Convert to fraction form
   2,286.51/3,155.16 = 1,291.59/x
3. Step 3: Cross multiply
   2,286.51x = 3,155.16 × 1,291.59
4. Step 4: Simplify right side
   2,286.51x = 4,075,173.10
5. Step 5: Solve for x
   x = 4,075,173.10/2,286.51
6. Step 6: Final answer
   x = 1,782.27