Finding the Fourth Proportional to 2,607.72, 3,912.72 and 1,374.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.72 : 3,912.72 = 1,374.84 : x
2. Step 2: Convert to fraction form
   2,607.72/3,912.72 = 1,374.84/x
3. Step 3: Cross multiply
   2,607.72x = 3,912.72 × 1,374.84
4. Step 4: Simplify right side
   2,607.72x = 5,379,363.96
5. Step 5: Solve for x
   x = 5,379,363.96/2,607.72
6. Step 6: Final answer
   x = 2,062.86