Finding the Fourth Proportional to 2,071.88, 3,106.89 and 610.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.88 : 3,106.89 = 610.52 : x
2. Step 2: Convert to fraction form
   2,071.88/3,106.89 = 610.52/x
3. Step 3: Cross multiply
   2,071.88x = 3,106.89 × 610.52
4. Step 4: Simplify right side
   2,071.88x = 1,896,818.48
5. Step 5: Solve for x
   x = 1,896,818.48/2,071.88
6. Step 6: Final answer
   x = 915.51