Finding the Fourth Proportional to 2,688.06, 4,032.72 and 1,226.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.06 : 4,032.72 = 1,226.82 : x
2. Step 2: Convert to fraction form
   2,688.06/4,032.72 = 1,226.82/x
3. Step 3: Cross multiply
   2,688.06x = 4,032.72 × 1,226.82
4. Step 4: Simplify right side
   2,688.06x = 4,947,421.55
5. Step 5: Solve for x
   x = 4,947,421.55/2,688.06
6. Step 6: Final answer
   x = 1,840.52