Finding the Fourth Proportional to 2,603.12, 3,906.12 and 1,064

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.12 : 3,906.12 = 1,064 : x
2. Step 2: Convert to fraction form
   2,603.12/3,906.12 = 1,064/x
3. Step 3: Cross multiply
   2,603.12x = 3,906.12 × 1,064
4. Step 4: Simplify right side
   2,603.12x = 4,156,111.68
5. Step 5: Solve for x
   x = 4,156,111.68/2,603.12
6. Step 6: Final answer
   x = 1,596.59