Finding the Fourth Proportional to 2,083.76, 3,126.72 and 929.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.76 : 3,126.72 = 929.24 : x
2. Step 2: Convert to fraction form
   2,083.76/3,126.72 = 929.24/x
3. Step 3: Cross multiply
   2,083.76x = 3,126.72 × 929.24
4. Step 4: Simplify right side
   2,083.76x = 2,905,473.29
5. Step 5: Solve for x
   x = 2,905,473.29/2,083.76
6. Step 6: Final answer
   x = 1,394.34