Finding the Fourth Proportional to 2,565.38, 3,539.57 and 1,570.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.38 : 3,539.57 = 1,570.30 : x
2. Step 2: Convert to fraction form
   2,565.38/3,539.57 = 1,570.30/x
3. Step 3: Cross multiply
   2,565.38x = 3,539.57 × 1,570.30
4. Step 4: Simplify right side
   2,565.38x = 5,558,186.77
5. Step 5: Solve for x
   x = 5,558,186.77/2,565.38
6. Step 6: Final answer
   x = 2,166.61