Finding the Fourth Proportional to 1,501.26, 2,071.89 and 863.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.26 : 2,071.89 = 863.43 : x
2. Step 2: Convert to fraction form
   1,501.26/2,071.89 = 863.43/x
3. Step 3: Cross multiply
   1,501.26x = 2,071.89 × 863.43
4. Step 4: Simplify right side
   1,501.26x = 1,788,931.98
5. Step 5: Solve for x
   x = 1,788,931.98/1,501.26
6. Step 6: Final answer
   x = 1,191.62