Finding the Fourth Proportional to 2,759.37, 3,807.91 and 1,564.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759.37 : 3,807.91 = 1,564.31 : x
2. Step 2: Convert to fraction form
   2,759.37/3,807.91 = 1,564.31/x
3. Step 3: Cross multiply
   2,759.37x = 3,807.91 × 1,564.31
4. Step 4: Simplify right side
   2,759.37x = 5,956,763.17
5. Step 5: Solve for x
   x = 5,956,763.17/2,759.37
6. Step 6: Final answer
   x = 2,158.74