Finding the Fourth Proportional to 2,377.34, 3,279.62 and 1,538.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.34 : 3,279.62 = 1,538.31 : x
2. Step 2: Convert to fraction form
   2,377.34/3,279.62 = 1,538.31/x
3. Step 3: Cross multiply
   2,377.34x = 3,279.62 × 1,538.31
4. Step 4: Simplify right side
   2,377.34x = 5,045,082.36
5. Step 5: Solve for x
   x = 5,045,082.36/2,377.34
6. Step 6: Final answer
   x = 2,122.16