Finding the Fourth Proportional to 1,425,300.25, 2,138,086.14 and 400,627.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425,300.25 : 2,138,086.14 = 400,627.88 : x
2. Step 2: Convert to fraction form
   1,425,300.25/2,138,086.14 = 400,627.88/x
3. Step 3: Cross multiply
   1,425,300.25x = 2,138,086.14 × 400,627.88
4. Step 4: Simplify right side
   1,425,300.25x = 856,576,917,525.58
5. Step 5: Solve for x
   x = 856,576,917,525.58/1,425,300.25
6. Step 6: Final answer
   x = 600,979.98