Finding the Fourth Proportional to 5,404.76, 7,458.55 and 2,920.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.76 : 7,458.55 = 2,920.76 : x
2. Step 2: Convert to fraction form
   5,404.76/7,458.55 = 2,920.76/x
3. Step 3: Cross multiply
   5,404.76x = 7,458.55 × 2,920.76
4. Step 4: Simplify right side
   5,404.76x = 21,784,634.50
5. Step 5: Solve for x
   x = 21,784,634.50/5,404.76
6. Step 6: Final answer
   x = 4,030.64