Finding the Fourth Proportional to 1,137.09, 1,569.59 and 671.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.09 : 1,569.59 = 671.34 : x
2. Step 2: Convert to fraction form
   1,137.09/1,569.59 = 671.34/x
3. Step 3: Cross multiply
   1,137.09x = 1,569.59 × 671.34
4. Step 4: Simplify right side
   1,137.09x = 1,053,737.37
5. Step 5: Solve for x
   x = 1,053,737.37/1,137.09
6. Step 6: Final answer
   x = 926.69