Finding the Fourth Proportional to 2,390,446.50, 3,298,816.25 and 1,317,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390,446.50 : 3,298,816.25 = 1,317,358.50 : x
2. Step 2: Convert to fraction form
   2,390,446.50/3,298,816.25 = 1,317,358.50/x
3. Step 3: Cross multiply
   2,390,446.50x = 3,298,816.25 × 1,317,358.50
4. Step 4: Simplify right side
   2,390,446.50x = 4,345,723,620,288.83
5. Step 5: Solve for x
   x = 4,345,723,620,288.83/2,390,446.50
6. Step 6: Final answer
   x = 1,817,954.77