Finding the Fourth Proportional to 2,421.25, 3,632.58 and 1,251.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421.25 : 3,632.58 = 1,251.91 : x
2. Step 2: Convert to fraction form
   2,421.25/3,632.58 = 1,251.91/x
3. Step 3: Cross multiply
   2,421.25x = 3,632.58 × 1,251.91
4. Step 4: Simplify right side
   2,421.25x = 4,547,667.77
5. Step 5: Solve for x
   x = 4,547,667.77/2,421.25
6. Step 6: Final answer
   x = 1,878.23