Finding the Fourth Proportional to 1,086.93, 1,500.72 and 837.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.93 : 1,500.72 = 837.84 : x
2. Step 2: Convert to fraction form
   1,086.93/1,500.72 = 837.84/x
3. Step 3: Cross multiply
   1,086.93x = 1,500.72 × 837.84
4. Step 4: Simplify right side
   1,086.93x = 1,257,363.24
5. Step 5: Solve for x
   x = 1,257,363.24/1,086.93
6. Step 6: Final answer
   x = 1,156.80