Finding the Fourth Proportional to 2,467.74, 3,412.06 and 2,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,467.74 : 3,412.06 = 2,156.50 : x
2. Step 2: Convert to fraction form
   2,467.74/3,412.06 = 2,156.50/x
3. Step 3: Cross multiply
   2,467.74x = 3,412.06 × 2,156.50
4. Step 4: Simplify right side
   2,467.74x = 7,358,107.39
5. Step 5: Solve for x
   x = 7,358,107.39/2,467.74
6. Step 6: Final answer
   x = 2,981.72