Finding the Fourth Proportional to 2,483.31, 3,726.45 and 923.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.31 : 3,726.45 = 923.05 : x
2. Step 2: Convert to fraction form
   2,483.31/3,726.45 = 923.05/x
3. Step 3: Cross multiply
   2,483.31x = 3,726.45 × 923.05
4. Step 4: Simplify right side
   2,483.31x = 3,439,699.67
5. Step 5: Solve for x
   x = 3,439,699.67/2,483.31
6. Step 6: Final answer
   x = 1,385.13