Finding the Fourth Proportional to 1,051,384.50, 1,578,199.59 and 452,642.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051,384.50 : 1,578,199.59 = 452,642.58 : x
2. Step 2: Convert to fraction form
   1,051,384.50/1,578,199.59 = 452,642.58/x
3. Step 3: Cross multiply
   1,051,384.50x = 1,578,199.59 × 452,642.58
4. Step 4: Simplify right side
   1,051,384.50x = 714,360,334,172.54
5. Step 5: Solve for x
   x = 714,360,334,172.54/1,051,384.50
6. Step 6: Final answer
   x = 679,447.28