Finding the Fourth Proportional to 1,572.56, 2,359.23 and 1,111.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,572.56 : 2,359.23 = 1,111.24 : x
2. Step 2: Convert to fraction form
   1,572.56/2,359.23 = 1,111.24/x
3. Step 3: Cross multiply
   1,572.56x = 2,359.23 × 1,111.24
4. Step 4: Simplify right side
   1,572.56x = 2,621,670.75
5. Step 5: Solve for x
   x = 2,621,670.75/1,572.56
6. Step 6: Final answer
   x = 1,667.14