Finding the Fourth Proportional to 2,181,165.58, 3,271,870.41 and 664,897.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,165.58 : 3,271,870.41 = 664,897.78 : x
2. Step 2: Convert to fraction form
   2,181,165.58/3,271,870.41 = 664,897.78/x
3. Step 3: Cross multiply
   2,181,165.58x = 3,271,870.41 × 664,897.78
4. Step 4: Simplify right side
   2,181,165.58x = 2,175,459,372,056.69
5. Step 5: Solve for x
   x = 2,175,459,372,056.69/2,181,165.58
6. Step 6: Final answer
   x = 997,383.87