Finding the Fourth Proportional to 2,155.74, 2,975.16 and 1,259.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.74 : 2,975.16 = 1,259.82 : x
2. Step 2: Convert to fraction form
   2,155.74/2,975.16 = 1,259.82/x
3. Step 3: Cross multiply
   2,155.74x = 2,975.16 × 1,259.82
4. Step 4: Simplify right side
   2,155.74x = 3,748,166.07
5. Step 5: Solve for x
   x = 3,748,166.07/2,155.74
6. Step 6: Final answer
   x = 1,738.69