Finding the Fourth Proportional to 2,131.85, 3,194.53 and 1,435.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.85 : 3,194.53 = 1,435.95 : x
2. Step 2: Convert to fraction form
   2,131.85/3,194.53 = 1,435.95/x
3. Step 3: Cross multiply
   2,131.85x = 3,194.53 × 1,435.95
4. Step 4: Simplify right side
   2,131.85x = 4,587,181.76
5. Step 5: Solve for x
   x = 4,587,181.76/2,131.85
6. Step 6: Final answer
   x = 2,151.74