Finding the Fourth Proportional to 2,632.51, 3,948.45 and 783.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.51 : 3,948.45 = 783.61 : x
2. Step 2: Convert to fraction form
   2,632.51/3,948.45 = 783.61/x
3. Step 3: Cross multiply
   2,632.51x = 3,948.45 × 783.61
4. Step 4: Simplify right side
   2,632.51x = 3,094,044.90
5. Step 5: Solve for x
   x = 3,094,044.90/2,632.51
6. Step 6: Final answer
   x = 1,175.32