Finding the Fourth Proportional to 1,974,404.56, 2,961,606.86 and 478,496.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974,404.56 : 2,961,606.86 = 478,496.56 : x
2. Step 2: Convert to fraction form
   1,974,404.56/2,961,606.86 = 478,496.56/x
3. Step 3: Cross multiply
   1,974,404.56x = 2,961,606.86 × 478,496.56
4. Step 4: Simplify right side
   1,974,404.56x = 1,417,118,694,582.40
5. Step 5: Solve for x
   x = 1,417,118,694,582.40/1,974,404.56
6. Step 6: Final answer
   x = 717,744.84