Finding the Fourth Proportional to 2,099,123.90, 2,898,418.39 and 1,639,435.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,123.90 : 2,898,418.39 = 1,639,435.94 : x
2. Step 2: Convert to fraction form
   2,099,123.90/2,898,418.39 = 1,639,435.94/x
3. Step 3: Cross multiply
   2,099,123.90x = 2,898,418.39 × 1,639,435.94
4. Step 4: Simplify right side
   2,099,123.90x = 4,751,771,259,132.26
5. Step 5: Solve for x
   x = 4,751,771,259,132.26/2,099,123.90
6. Step 6: Final answer
   x = 2,263,692.62