Finding the Fourth Proportional to 868.32, 1,196.64 and 846.72

Step by Step Solution

1. Step 1: Write the proportion equation
   868.32 : 1,196.64 = 846.72 : x
2. Step 2: Convert to fraction form
   868.32/1,196.64 = 846.72/x
3. Step 3: Cross multiply
   868.32x = 1,196.64 × 846.72
4. Step 4: Simplify right side
   868.32x = 1,013,219.02
5. Step 5: Solve for x
   x = 1,013,219.02/868.32
6. Step 6: Final answer
   x = 1,166.87