Finding the Fourth Proportional to 1,341.46, 1,851.15 and 817.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.46 : 1,851.15 = 817.39 : x
2. Step 2: Convert to fraction form
   1,341.46/1,851.15 = 817.39/x
3. Step 3: Cross multiply
   1,341.46x = 1,851.15 × 817.39
4. Step 4: Simplify right side
   1,341.46x = 1,513,111.50
5. Step 5: Solve for x
   x = 1,513,111.50/1,341.46
6. Step 6: Final answer
   x = 1,127.96