Finding the Fourth Proportional to 2,613.86, 3,921.00 and 1,133.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.86 : 3,921.00 = 1,133.18 : x
2. Step 2: Convert to fraction form
   2,613.86/3,921.00 = 1,133.18/x
3. Step 3: Cross multiply
   2,613.86x = 3,921.00 × 1,133.18
4. Step 4: Simplify right side
   2,613.86x = 4,443,193.11
5. Step 5: Solve for x
   x = 4,443,193.11/2,613.86
6. Step 6: Final answer
   x = 1,699.86