Finding the Fourth Proportional to 1,264.48, 1,897.56 and 571.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264.48 : 1,897.56 = 571.52 : x
2. Step 2: Convert to fraction form
   1,264.48/1,897.56 = 571.52/x
3. Step 3: Cross multiply
   1,264.48x = 1,897.56 × 571.52
4. Step 4: Simplify right side
   1,264.48x = 1,084,498.24
5. Step 5: Solve for x
   x = 1,084,498.24/1,264.48
6. Step 6: Final answer
   x = 857.67