Finding the Fourth Proportional to 1,974,402.56, 2,961,603.86 and 478,494.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974,402.56 : 2,961,603.86 = 478,494.56 : x
2. Step 2: Convert to fraction form
   1,974,402.56/2,961,603.86 = 478,494.56/x
3. Step 3: Cross multiply
   1,974,402.56x = 2,961,603.86 × 478,494.56
4. Step 4: Simplify right side
   1,974,402.56x = 1,417,111,340,896.54
5. Step 5: Solve for x
   x = 1,417,111,340,896.54/1,974,402.56
6. Step 6: Final answer
   x = 717,741.85