Finding the Fourth Proportional to 1,156.38, 1,595.67 and 684.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.38 : 1,595.67 = 684.30 : x
2. Step 2: Convert to fraction form
   1,156.38/1,595.67 = 684.30/x
3. Step 3: Cross multiply
   1,156.38x = 1,595.67 × 684.30
4. Step 4: Simplify right side
   1,156.38x = 1,091,916.98
5. Step 5: Solve for x
   x = 1,091,916.98/1,156.38
6. Step 6: Final answer
   x = 944.25