Finding the Fourth Proportional to 2,390,492.50, 3,298,879.65 and 1,317,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390,492.50 : 3,298,879.65 = 1,317,404.50 : x
2. Step 2: Convert to fraction form
   2,390,492.50/3,298,879.65 = 1,317,404.50/x
3. Step 3: Cross multiply
   2,390,492.50x = 3,298,879.65 × 1,317,404.50
4. Step 4: Simplify right side
   2,390,492.50x = 4,345,958,895,868.43
5. Step 5: Solve for x
   x = 4,345,958,895,868.43/2,390,492.50
6. Step 6: Final answer
   x = 1,818,018.21