Finding the Fourth Proportional to 2,603.50, 3,905.88 and 1,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.50 : 3,905.88 = 1,064.50 : x
2. Step 2: Convert to fraction form
   2,603.50/3,905.88 = 1,064.50/x
3. Step 3: Cross multiply
   2,603.50x = 3,905.88 × 1,064.50
4. Step 4: Simplify right side
   2,603.50x = 4,157,809.26
5. Step 5: Solve for x
   x = 4,157,809.26/2,603.50
6. Step 6: Final answer
   x = 1,597.01