Finding the Fourth Proportional to 1,535,906.72, 2,303,597.52 and 413,713.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535,906.72 : 2,303,597.52 = 413,713.28 : x
2. Step 2: Convert to fraction form
   1,535,906.72/2,303,597.52 = 413,713.28/x
3. Step 3: Cross multiply
   1,535,906.72x = 2,303,597.52 × 413,713.28
4. Step 4: Simplify right side
   1,535,906.72x = 953,028,885,799.07
5. Step 5: Solve for x
   x = 953,028,885,799.07/1,535,906.72
6. Step 6: Final answer
   x = 620,499.20