Finding the Fourth Proportional to 1,613.58, 2,421.46 and 1,036.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.58 : 2,421.46 = 1,036.86 : x
2. Step 2: Convert to fraction form
   1,613.58/2,421.46 = 1,036.86/x
3. Step 3: Cross multiply
   1,613.58x = 2,421.46 × 1,036.86
4. Step 4: Simplify right side
   1,613.58x = 2,510,715.02
5. Step 5: Solve for x
   x = 2,510,715.02/1,613.58
6. Step 6: Final answer
   x = 1,555.99