Finding the Fourth Proportional to 1,137.34, 1,705.30 and 649.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.34 : 1,705.30 = 649.72 : x
2. Step 2: Convert to fraction form
   1,137.34/1,705.30 = 649.72/x
3. Step 3: Cross multiply
   1,137.34x = 1,705.30 × 649.72
4. Step 4: Simplify right side
   1,137.34x = 1,107,967.52
5. Step 5: Solve for x
   x = 1,107,967.52/1,137.34
6. Step 6: Final answer
   x = 974.17