Finding the Fourth Proportional to 2,618.70, 3,612.29 and 1,570.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.70 : 3,612.29 = 1,570.15 : x
2. Step 2: Convert to fraction form
   2,618.70/3,612.29 = 1,570.15/x
3. Step 3: Cross multiply
   2,618.70x = 3,612.29 × 1,570.15
4. Step 4: Simplify right side
   2,618.70x = 5,671,837.14
5. Step 5: Solve for x
   x = 5,671,837.14/2,618.70
6. Step 6: Final answer
   x = 2,165.90