Finding the Fourth Proportional to 1,974,482.72, 2,961,714.36 and 478,574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974,482.72 : 2,961,714.36 = 478,574.72 : x
2. Step 2: Convert to fraction form
   1,974,482.72/2,961,714.36 = 478,574.72/x
3. Step 3: Cross multiply
   1,974,482.72x = 2,961,714.36 × 478,574.72
4. Step 4: Simplify right side
   1,974,482.72x = 1,417,401,620,556.98
5. Step 5: Solve for x
   x = 1,417,401,620,556.98/1,974,482.72
6. Step 6: Final answer
   x = 717,859.72