Finding the Fourth Proportional to 3,870.10, 5,804.86 and 1,404.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.10 : 5,804.86 = 1,404.46 : x
2. Step 2: Convert to fraction form
   3,870.10/5,804.86 = 1,404.46/x
3. Step 3: Cross multiply
   3,870.10x = 5,804.86 × 1,404.46
4. Step 4: Simplify right side
   3,870.10x = 8,152,693.68
5. Step 5: Solve for x
   x = 8,152,693.68/3,870.10
6. Step 6: Final answer
   x = 2,106.58