Finding the Fourth Proportional to 876.89, 1,312.83 and 746.15

Step by Step Solution

1. Step 1: Write the proportion equation
   876.89 : 1,312.83 = 746.15 : x
2. Step 2: Convert to fraction form
   876.89/1,312.83 = 746.15/x
3. Step 3: Cross multiply
   876.89x = 1,312.83 × 746.15
4. Step 4: Simplify right side
   876.89x = 979,561.54
5. Step 5: Solve for x
   x = 979,561.54/876.89
6. Step 6: Final answer
   x = 1,117.08