Finding the Fourth Proportional to 2,602.32, 3,900.70 and 1,214.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.32 : 3,900.70 = 1,214.04 : x
2. Step 2: Convert to fraction form
   2,602.32/3,900.70 = 1,214.04/x
3. Step 3: Cross multiply
   2,602.32x = 3,900.70 × 1,214.04
4. Step 4: Simplify right side
   2,602.32x = 4,735,605.83
5. Step 5: Solve for x
   x = 4,735,605.83/2,602.32
6. Step 6: Final answer
   x = 1,819.76