Finding the Fourth Proportional to 2,238,100.20, 3,358,549.98 and 908,404.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238,100.20 : 3,358,549.98 = 908,404.20 : x
2. Step 2: Convert to fraction form
   2,238,100.20/3,358,549.98 = 908,404.20/x
3. Step 3: Cross multiply
   2,238,100.20x = 3,358,549.98 × 908,404.20
4. Step 4: Simplify right side
   2,238,100.20x = 3,050,920,907,741.92
5. Step 5: Solve for x
   x = 3,050,920,907,741.92/2,238,100.20
6. Step 6: Final answer
   x = 1,363,174.40