Finding the Fourth Proportional to 1,427,017.30, 2,140,883.16 and 416,139.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,017.30 : 2,140,883.16 = 416,139.37 : x
2. Step 2: Convert to fraction form
   1,427,017.30/2,140,883.16 = 416,139.37/x
3. Step 3: Cross multiply
   1,427,017.30x = 2,140,883.16 × 416,139.37
4. Step 4: Simplify right side
   1,427,017.30x = 890,905,769,446.01
5. Step 5: Solve for x
   x = 890,905,769,446.01/1,427,017.30
6. Step 6: Final answer
   x = 624,313.22