Finding the Fourth Proportional to 1,095.68, 1,644.72 and 837.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.68 : 1,644.72 = 837.32 : x
2. Step 2: Convert to fraction form
   1,095.68/1,644.72 = 837.32/x
3. Step 3: Cross multiply
   1,095.68x = 1,644.72 × 837.32
4. Step 4: Simplify right side
   1,095.68x = 1,377,156.95
5. Step 5: Solve for x
   x = 1,377,156.95/1,095.68
6. Step 6: Final answer
   x = 1,256.90