Finding the Fourth Proportional to 2,158,838.25, 2,979,459.23 and 1,253,420.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,838.25 : 2,979,459.23 = 1,253,420.25 : x
2. Step 2: Convert to fraction form
   2,158,838.25/2,979,459.23 = 1,253,420.25/x
3. Step 3: Cross multiply
   2,158,838.25x = 2,979,459.23 × 1,253,420.25
4. Step 4: Simplify right side
   2,158,838.25x = 3,734,514,526,664.31
5. Step 5: Solve for x
   x = 3,734,514,526,664.31/2,158,838.25
6. Step 6: Final answer
   x = 1,729,872.32