Finding the Fourth Proportional to 2,972.53, 4,458.34 and 1,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972.53 : 4,458.34 = 1,122.72 : x
2. Step 2: Convert to fraction form
   2,972.53/4,458.34 = 1,122.72/x
3. Step 3: Cross multiply
   2,972.53x = 4,458.34 × 1,122.72
4. Step 4: Simplify right side
   2,972.53x = 5,005,467.48
5. Step 5: Solve for x
   x = 5,005,467.48/2,972.53
6. Step 6: Final answer
   x = 1,683.91