Finding the Fourth Proportional to 2,564.93, 3,539.86 and 1,570.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.93 : 3,539.86 = 1,570.86 : x
2. Step 2: Convert to fraction form
   2,564.93/3,539.86 = 1,570.86/x
3. Step 3: Cross multiply
   2,564.93x = 3,539.86 × 1,570.86
4. Step 4: Simplify right side
   2,564.93x = 5,560,624.48
5. Step 5: Solve for x
   x = 5,560,624.48/2,564.93
6. Step 6: Final answer
   x = 2,167.94