Finding the Fourth Proportional to 5,082.90, 7,623.56 and 1,385.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,082.90 : 7,623.56 = 1,385.43 : x
2. Step 2: Convert to fraction form
   5,082.90/7,623.56 = 1,385.43/x
3. Step 3: Cross multiply
   5,082.90x = 7,623.56 × 1,385.43
4. Step 4: Simplify right side
   5,082.90x = 10,561,885.34
5. Step 5: Solve for x
   x = 10,561,885.34/5,082.90
6. Step 6: Final answer
   x = 2,077.93