Finding the Fourth Proportional to 2,931.18, 4,045.71 and 1,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.18 : 4,045.71 = 1,936.50 : x
2. Step 2: Convert to fraction form
   2,931.18/4,045.71 = 1,936.50/x
3. Step 3: Cross multiply
   2,931.18x = 4,045.71 × 1,936.50
4. Step 4: Simplify right side
   2,931.18x = 7,834,517.42
5. Step 5: Solve for x
   x = 7,834,517.42/2,931.18
6. Step 6: Final answer
   x = 2,672.82