Finding the Fourth Proportional to 2,131.04, 3,196.92 and 1,611.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.04 : 3,196.92 = 1,611.74 : x
2. Step 2: Convert to fraction form
   2,131.04/3,196.92 = 1,611.74/x
3. Step 3: Cross multiply
   2,131.04x = 3,196.92 × 1,611.74
4. Step 4: Simplify right side
   2,131.04x = 5,152,603.84
5. Step 5: Solve for x
   x = 5,152,603.84/2,131.04
6. Step 6: Final answer
   x = 2,417.88