Finding the Fourth Proportional to 1,137.34, 1,569.50 and 671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.34 : 1,569.50 = 671.50 : x
2. Step 2: Convert to fraction form
   1,137.34/1,569.50 = 671.50/x
3. Step 3: Cross multiply
   1,137.34x = 1,569.50 × 671.50
4. Step 4: Simplify right side
   1,137.34x = 1,053,919.25
5. Step 5: Solve for x
   x = 1,053,919.25/1,137.34
6. Step 6: Final answer
   x = 926.65