Finding the Fourth Proportional to 1,567.89, 2,163.71 and 1,070.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.89 : 2,163.71 = 1,070.52 : x
2. Step 2: Convert to fraction form
   1,567.89/2,163.71 = 1,070.52/x
3. Step 3: Cross multiply
   1,567.89x = 2,163.71 × 1,070.52
4. Step 4: Simplify right side
   1,567.89x = 2,316,289.48
5. Step 5: Solve for x
   x = 2,316,289.48/1,567.89
6. Step 6: Final answer
   x = 1,477.33