Finding the Fourth Proportional to 3,870.54, 5,802.23 and 1,404.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.54 : 5,802.23 = 1,404.76 : x
2. Step 2: Convert to fraction form
   3,870.54/5,802.23 = 1,404.76/x
3. Step 3: Cross multiply
   3,870.54x = 5,802.23 × 1,404.76
4. Step 4: Simplify right side
   3,870.54x = 8,150,740.61
5. Step 5: Solve for x
   x = 8,150,740.61/3,870.54
6. Step 6: Final answer
   x = 2,105.84