Finding the Fourth Proportional to 2,312.24, 3,191.76 and 1,570.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.24 : 3,191.76 = 1,570.04 : x
2. Step 2: Convert to fraction form
   2,312.24/3,191.76 = 1,570.04/x
3. Step 3: Cross multiply
   2,312.24x = 3,191.76 × 1,570.04
4. Step 4: Simplify right side
   2,312.24x = 5,011,190.87
5. Step 5: Solve for x
   x = 5,011,190.87/2,312.24
6. Step 6: Final answer
   x = 2,167.25