Finding the Fourth Proportional to 2,551.83, 3,520.33 and 1,607.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.83 : 3,520.33 = 1,607.19 : x
2. Step 2: Convert to fraction form
   2,551.83/3,520.33 = 1,607.19/x
3. Step 3: Cross multiply
   2,551.83x = 3,520.33 × 1,607.19
4. Step 4: Simplify right side
   2,551.83x = 5,657,839.17
5. Step 5: Solve for x
   x = 5,657,839.17/2,551.83
6. Step 6: Final answer
   x = 2,217.17