Finding the Fourth Proportional to 1,570.07, 2,165.50 and 1,150.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.07 : 2,165.50 = 1,150.27 : x
2. Step 2: Convert to fraction form
   1,570.07/2,165.50 = 1,150.27/x
3. Step 3: Cross multiply
   1,570.07x = 2,165.50 × 1,150.27
4. Step 4: Simplify right side
   1,570.07x = 2,490,909.69
5. Step 5: Solve for x
   x = 2,490,909.69/1,570.07
6. Step 6: Final answer
   x = 1,586.50