Finding the Fourth Proportional to 2,357.91, 3,536.93 and 877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.91 : 3,536.93 = 877.50 : x
2. Step 2: Convert to fraction form
   2,357.91/3,536.93 = 877.50/x
3. Step 3: Cross multiply
   2,357.91x = 3,536.93 × 877.50
4. Step 4: Simplify right side
   2,357.91x = 3,103,658.27
5. Step 5: Solve for x
   x = 3,103,658.27/2,357.91
6. Step 6: Final answer
   x = 1,316.28