Finding the Fourth Proportional to 1,548,814.72, 2,323,338.72 and 426,874

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548,814.72 : 2,323,338.72 = 426,874 : x
2. Step 2: Convert to fraction form
   1,548,814.72/2,323,338.72 = 426,874/x
3. Step 3: Cross multiply
   1,548,814.72x = 2,323,338.72 × 426,874
4. Step 4: Simplify right side
   1,548,814.72x = 991,772,892,761.28
5. Step 5: Solve for x
   x = 991,772,892,761.28/1,548,814.72
6. Step 6: Final answer
   x = 640,343.15