Finding the Fourth Proportional to 2,131.80, 3,191.04 and 1,352.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.80 : 3,191.04 = 1,352.58 : x
2. Step 2: Convert to fraction form
   2,131.80/3,191.04 = 1,352.58/x
3. Step 3: Cross multiply
   2,131.80x = 3,191.04 × 1,352.58
4. Step 4: Simplify right side
   2,131.80x = 4,316,136.88
5. Step 5: Solve for x
   x = 4,316,136.88/2,131.80
6. Step 6: Final answer
   x = 2,024.64