Finding the Fourth Proportional to 1,015.50, 1,397.61 and 837.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.50 : 1,397.61 = 837.03 : x
2. Step 2: Convert to fraction form
   1,015.50/1,397.61 = 837.03/x
3. Step 3: Cross multiply
   1,015.50x = 1,397.61 × 837.03
4. Step 4: Simplify right side
   1,015.50x = 1,169,841.50
5. Step 5: Solve for x
   x = 1,169,841.50/1,015.50
6. Step 6: Final answer
   x = 1,151.99