Finding the Fourth Proportional to 2,087.52, 3,131.40 and 700.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.52 : 3,131.40 = 700.74 : x
2. Step 2: Convert to fraction form
   2,087.52/3,131.40 = 700.74/x
3. Step 3: Cross multiply
   2,087.52x = 3,131.40 × 700.74
4. Step 4: Simplify right side
   2,087.52x = 2,194,299.86
5. Step 5: Solve for x
   x = 2,194,299.86/2,087.52
6. Step 6: Final answer
   x = 1,051.15