Finding the Fourth Proportional to 1,061.78, 1,463.57 and 837.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.78 : 1,463.57 = 837.36 : x
2. Step 2: Convert to fraction form
   1,061.78/1,463.57 = 837.36/x
3. Step 3: Cross multiply
   1,061.78x = 1,463.57 × 837.36
4. Step 4: Simplify right side
   1,061.78x = 1,225,530.79
5. Step 5: Solve for x
   x = 1,225,530.79/1,061.78
6. Step 6: Final answer
   x = 1,154.23