Finding the Fourth Proportional to 2,612.30, 3,603.56 and 1,564.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.30 : 3,603.56 = 1,564.16 : x
2. Step 2: Convert to fraction form
   2,612.30/3,603.56 = 1,564.16/x
3. Step 3: Cross multiply
   2,612.30x = 3,603.56 × 1,564.16
4. Step 4: Simplify right side
   2,612.30x = 5,636,544.41
5. Step 5: Solve for x
   x = 5,636,544.41/2,612.30
6. Step 6: Final answer
   x = 2,157.69