Finding the Fourth Proportional to 1,447.94, 2,172.63 and 1,066.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.94 : 2,172.63 = 1,066.34 : x
2. Step 2: Convert to fraction form
   1,447.94/2,172.63 = 1,066.34/x
3. Step 3: Cross multiply
   1,447.94x = 2,172.63 × 1,066.34
4. Step 4: Simplify right side
   1,447.94x = 2,316,762.27
5. Step 5: Solve for x
   x = 2,316,762.27/1,447.94
6. Step 6: Final answer
   x = 1,600.04