Finding the Fourth Proportional to 1,647.34, 2,272.24 and 1,056.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.34 : 2,272.24 = 1,056.94 : x
2. Step 2: Convert to fraction form
   1,647.34/2,272.24 = 1,056.94/x
3. Step 3: Cross multiply
   1,647.34x = 2,272.24 × 1,056.94
4. Step 4: Simplify right side
   1,647.34x = 2,401,621.35
5. Step 5: Solve for x
   x = 2,401,621.35/1,647.34
6. Step 6: Final answer
   x = 1,457.88