Finding the Fourth Proportional to 1,396.84, 1,927.58 and 837.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.84 : 1,927.58 = 837.62 : x
2. Step 2: Convert to fraction form
   1,396.84/1,927.58 = 837.62/x
3. Step 3: Cross multiply
   1,396.84x = 1,927.58 × 837.62
4. Step 4: Simplify right side
   1,396.84x = 1,614,579.56
5. Step 5: Solve for x
   x = 1,614,579.56/1,396.84
6. Step 6: Final answer
   x = 1,155.88