Finding the Fourth Proportional to 2,638,598.38, 3,641,272.78 and 1,431,374.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,598.38 : 3,641,272.78 = 1,431,374.38 : x
2. Step 2: Convert to fraction form
   2,638,598.38/3,641,272.78 = 1,431,374.38/x
3. Step 3: Cross multiply
   2,638,598.38x = 3,641,272.78 × 1,431,374.38
4. Step 4: Simplify right side
   2,638,598.38x = 5,212,024,567,883.38
5. Step 5: Solve for x
   x = 5,212,024,567,883.38/2,638,598.38
6. Step 6: Final answer
   x = 1,975,300.45