Finding the Fourth Proportional to 2,082,931.20, 3,126,729.60 and 1,611,705.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082,931.20 : 3,126,729.60 = 1,611,705.60 : x
2. Step 2: Convert to fraction form
   2,082,931.20/3,126,729.60 = 1,611,705.60/x
3. Step 3: Cross multiply
   2,082,931.20x = 3,126,729.60 × 1,611,705.60
4. Step 4: Simplify right side
   2,082,931.20x = 5,039,367,606,005.76
5. Step 5: Solve for x
   x = 5,039,367,606,005.76/2,082,931.20
6. Step 6: Final answer
   x = 2,419,363.45