Finding the Fourth Proportional to 1,317.15, 1,975.72 and 537.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.15 : 1,975.72 = 537.02 : x
2. Step 2: Convert to fraction form
   1,317.15/1,975.72 = 537.02/x
3. Step 3: Cross multiply
   1,317.15x = 1,975.72 × 537.02
4. Step 4: Simplify right side
   1,317.15x = 1,061,001.15
5. Step 5: Solve for x
   x = 1,061,001.15/1,317.15
6. Step 6: Final answer
   x = 805.53