Finding the Fourth Proportional to 2,091,485.20, 3,132,562.20 and 1,616,630.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091,485.20 : 3,132,562.20 = 1,616,630.80 : x
2. Step 2: Convert to fraction form
   2,091,485.20/3,132,562.20 = 1,616,630.80/x
3. Step 3: Cross multiply
   2,091,485.20x = 3,132,562.20 × 1,616,630.80
4. Step 4: Simplify right side
   2,091,485.20x = 5,064,196,535,435.76
5. Step 5: Solve for x
   x = 5,064,196,535,435.76/2,091,485.20
6. Step 6: Final answer
   x = 2,421,339.89