Finding the Fourth Proportional to 2,607.09, 3,912.18 and 1,047.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.09 : 3,912.18 = 1,047.84 : x
2. Step 2: Convert to fraction form
   2,607.09/3,912.18 = 1,047.84/x
3. Step 3: Cross multiply
   2,607.09x = 3,912.18 × 1,047.84
4. Step 4: Simplify right side
   2,607.09x = 4,099,338.69
5. Step 5: Solve for x
   x = 4,099,338.69/2,607.09
6. Step 6: Final answer
   x = 1,572.38