Finding the Fourth Proportional to 2,372.22, 3,274.34 and 1,377.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.22 : 3,274.34 = 1,377.72 : x
2. Step 2: Convert to fraction form
   2,372.22/3,274.34 = 1,377.72/x
3. Step 3: Cross multiply
   2,372.22x = 3,274.34 × 1,377.72
4. Step 4: Simplify right side
   2,372.22x = 4,511,123.70
5. Step 5: Solve for x
   x = 4,511,123.70/2,372.22
6. Step 6: Final answer
   x = 1,901.65