Finding the Fourth Proportional to 1,172.14, 1,756.82 and 623.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172.14 : 1,756.82 = 623.34 : x
2. Step 2: Convert to fraction form
   1,172.14/1,756.82 = 623.34/x
3. Step 3: Cross multiply
   1,172.14x = 1,756.82 × 623.34
4. Step 4: Simplify right side
   1,172.14x = 1,095,096.18
5. Step 5: Solve for x
   x = 1,095,096.18/1,172.14
6. Step 6: Final answer
   x = 934.27