Finding the Fourth Proportional to 2,421.52, 3,634.56 and 1,123.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421.52 : 3,634.56 = 1,123.84 : x
2. Step 2: Convert to fraction form
   2,421.52/3,634.56 = 1,123.84/x
3. Step 3: Cross multiply
   2,421.52x = 3,634.56 × 1,123.84
4. Step 4: Simplify right side
   2,421.52x = 4,084,663.91
5. Step 5: Solve for x
   x = 4,084,663.91/2,421.52
6. Step 6: Final answer
   x = 1,686.82