Finding the Fourth Proportional to 2,976.96, 4,465.50 and 1,128.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.96 : 4,465.50 = 1,128.96 : x
2. Step 2: Convert to fraction form
   2,976.96/4,465.50 = 1,128.96/x
3. Step 3: Cross multiply
   2,976.96x = 4,465.50 × 1,128.96
4. Step 4: Simplify right side
   2,976.96x = 5,041,370.88
5. Step 5: Solve for x
   x = 5,041,370.88/2,976.96
6. Step 6: Final answer
   x = 1,693.46