Finding the Fourth Proportional to 2,603.32, 3,591.11 and 1,607.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.32 : 3,591.11 = 1,607.89 : x
2. Step 2: Convert to fraction form
   2,603.32/3,591.11 = 1,607.89/x
3. Step 3: Cross multiply
   2,603.32x = 3,591.11 × 1,607.89
4. Step 4: Simplify right side
   2,603.32x = 5,774,109.86
5. Step 5: Solve for x
   x = 5,774,109.86/2,603.32
6. Step 6: Final answer
   x = 2,217.98