Finding the Fourth Proportional to 1,015.47, 1,401.35 and 573.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.47 : 1,401.35 = 573.37 : x
2. Step 2: Convert to fraction form
   1,015.47/1,401.35 = 573.37/x
3. Step 3: Cross multiply
   1,015.47x = 1,401.35 × 573.37
4. Step 4: Simplify right side
   1,015.47x = 803,492.05
5. Step 5: Solve for x
   x = 803,492.05/1,015.47
6. Step 6: Final answer
   x = 791.25