Finding the Fourth Proportional to 1,604.76, 2,214.60 and 906.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.76 : 2,214.60 = 906.18 : x
2. Step 2: Convert to fraction form
   1,604.76/2,214.60 = 906.18/x
3. Step 3: Cross multiply
   1,604.76x = 2,214.60 × 906.18
4. Step 4: Simplify right side
   1,604.76x = 2,006,826.23
5. Step 5: Solve for x
   x = 2,006,826.23/1,604.76
6. Step 6: Final answer
   x = 1,250.55