Finding the Fourth Proportional to 1,267,300.71, 1,900,975.37 and 414,375.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,300.71 : 1,900,975.37 = 414,375.57 : x
2. Step 2: Convert to fraction form
   1,267,300.71/1,900,975.37 = 414,375.57/x
3. Step 3: Cross multiply
   1,267,300.71x = 1,900,975.37 × 414,375.57
4. Step 4: Simplify right side
   1,267,300.71x = 787,717,750,427.83
5. Step 5: Solve for x
   x = 787,717,750,427.83/1,267,300.71
6. Step 6: Final answer
   x = 621,571.30