Finding the Fourth Proportional to 2,513.96, 3,469.60 and 1,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.96 : 3,469.60 = 1,570.72 : x
2. Step 2: Convert to fraction form
   2,513.96/3,469.60 = 1,570.72/x
3. Step 3: Cross multiply
   2,513.96x = 3,469.60 × 1,570.72
4. Step 4: Simplify right side
   2,513.96x = 5,449,770.11
5. Step 5: Solve for x
   x = 5,449,770.11/2,513.96
6. Step 6: Final answer
   x = 2,167.80