Finding the Fourth Proportional to 1,801,040.10, 2,694,999.15 and 1,328,648.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801,040.10 : 2,694,999.15 = 1,328,648.10 : x
2. Step 2: Convert to fraction form
   1,801,040.10/2,694,999.15 = 1,328,648.10/x
3. Step 3: Cross multiply
   1,801,040.10x = 2,694,999.15 × 1,328,648.10
4. Step 4: Simplify right side
   1,801,040.10x = 3,580,705,500,149.12
5. Step 5: Solve for x
   x = 3,580,705,500,149.12/1,801,040.10
6. Step 6: Final answer
   x = 1,988,132.02