Finding the Fourth Proportional to 2,071.40, 3,099.35 and 1,235.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.40 : 3,099.35 = 1,235.41 : x
2. Step 2: Convert to fraction form
   2,071.40/3,099.35 = 1,235.41/x
3. Step 3: Cross multiply
   2,071.40x = 3,099.35 × 1,235.41
4. Step 4: Simplify right side
   2,071.40x = 3,828,963.32
5. Step 5: Solve for x
   x = 3,828,963.32/2,071.40
6. Step 6: Final answer
   x = 1,848.50