Finding the Fourth Proportional to 1,047.86, 1,572.27 and 535.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.86 : 1,572.27 = 535.22 : x
2. Step 2: Convert to fraction form
   1,047.86/1,572.27 = 535.22/x
3. Step 3: Cross multiply
   1,047.86x = 1,572.27 × 535.22
4. Step 4: Simplify right side
   1,047.86x = 841,510.35
5. Step 5: Solve for x
   x = 841,510.35/1,047.86
6. Step 6: Final answer
   x = 803.08