Finding the Fourth Proportional to 2,647.34, 3,970.98 and 1,088.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.34 : 3,970.98 = 1,088.06 : x
2. Step 2: Convert to fraction form
   2,647.34/3,970.98 = 1,088.06/x
3. Step 3: Cross multiply
   2,647.34x = 3,970.98 × 1,088.06
4. Step 4: Simplify right side
   2,647.34x = 4,320,664.50
5. Step 5: Solve for x
   x = 4,320,664.50/2,647.34
6. Step 6: Final answer
   x = 1,632.08