Finding the Fourth Proportional to 3,904.81, 5,856.91 and 1,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,904.81 : 5,856.91 = 1,564.72 : x
2. Step 2: Convert to fraction form
   3,904.81/5,856.91 = 1,564.72/x
3. Step 3: Cross multiply
   3,904.81x = 5,856.91 × 1,564.72
4. Step 4: Simplify right side
   3,904.81x = 9,164,405.66
5. Step 5: Solve for x
   x = 9,164,405.66/3,904.81
6. Step 6: Final answer
   x = 2,346.95