Finding the Fourth Proportional to 1,404,342.56, 2,107,071.52 and 457,721.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,342.56 : 2,107,071.52 = 457,721.48 : x
2. Step 2: Convert to fraction form
   1,404,342.56/2,107,071.52 = 457,721.48/x
3. Step 3: Cross multiply
   1,404,342.56x = 2,107,071.52 × 457,721.48
4. Step 4: Simplify right side
   1,404,342.56x = 964,451,894,600.25
5. Step 5: Solve for x
   x = 964,451,894,600.25/1,404,342.56
6. Step 6: Final answer
   x = 686,763.99