Finding the Fourth Proportional to 2,929.51, 4,389.86 and 1,172.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.51 : 4,389.86 = 1,172.77 : x
2. Step 2: Convert to fraction form
   2,929.51/4,389.86 = 1,172.77/x
3. Step 3: Cross multiply
   2,929.51x = 4,389.86 × 1,172.77
4. Step 4: Simplify right side
   2,929.51x = 5,148,295.47
5. Step 5: Solve for x
   x = 5,148,295.47/2,929.51
6. Step 6: Final answer
   x = 1,757.39