Finding the Fourth Proportional to 2,186,300.30, 3,017,099.68 and 1,219,493.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186,300.30 : 3,017,099.68 = 1,219,493.21 : x
2. Step 2: Convert to fraction form
   2,186,300.30/3,017,099.68 = 1,219,493.21/x
3. Step 3: Cross multiply
   2,186,300.30x = 3,017,099.68 × 1,219,493.21
4. Step 4: Simplify right side
   2,186,300.30x = 3,679,332,555,518.94
5. Step 5: Solve for x
   x = 3,679,332,555,518.94/2,186,300.30
6. Step 6: Final answer
   x = 1,682,903.56