Finding the Fourth Proportional to 2,077.86, 3,112.47 and 983.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.86 : 3,112.47 = 983.10 : x
2. Step 2: Convert to fraction form
   2,077.86/3,112.47 = 983.10/x
3. Step 3: Cross multiply
   2,077.86x = 3,112.47 × 983.10
4. Step 4: Simplify right side
   2,077.86x = 3,059,869.26
5. Step 5: Solve for x
   x = 3,059,869.26/2,077.86
6. Step 6: Final answer
   x = 1,472.61