Finding the Fourth Proportional to 2,190,936.62, 3,023,436.72 and 1,224,074.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,936.62 : 3,023,436.72 = 1,224,074.18 : x
2. Step 2: Convert to fraction form
   2,190,936.62/3,023,436.72 = 1,224,074.18/x
3. Step 3: Cross multiply
   2,190,936.62x = 3,023,436.72 × 1,224,074.18
4. Step 4: Simplify right side
   2,190,936.62x = 3,700,910,813,288.98
5. Step 5: Solve for x
   x = 3,700,910,813,288.98/2,190,936.62
6. Step 6: Final answer
   x = 1,689,191.18