Finding the Fourth Proportional to 2,156.74, 2,976.54 and 1,260.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.74 : 2,976.54 = 1,260.82 : x
2. Step 2: Convert to fraction form
   2,156.74/2,976.54 = 1,260.82/x
3. Step 3: Cross multiply
   2,156.74x = 2,976.54 × 1,260.82
4. Step 4: Simplify right side
   2,156.74x = 3,752,881.16
5. Step 5: Solve for x
   x = 3,752,881.16/2,156.74
6. Step 6: Final answer
   x = 1,740.07