Finding the Fourth Proportional to 2,794.32, 4,188.39 and 1,406.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,794.32 : 4,188.39 = 1,406.76 : x
2. Step 2: Convert to fraction form
   2,794.32/4,188.39 = 1,406.76/x
3. Step 3: Cross multiply
   2,794.32x = 4,188.39 × 1,406.76
4. Step 4: Simplify right side
   2,794.32x = 5,892,059.52
5. Step 5: Solve for x
   x = 5,892,059.52/2,794.32
6. Step 6: Final answer
   x = 2,108.58