Finding the Fourth Proportional to 1,762.86, 2,429.94 and 1,389.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.86 : 2,429.94 = 1,389.24 : x
2. Step 2: Convert to fraction form
   1,762.86/2,429.94 = 1,389.24/x
3. Step 3: Cross multiply
   1,762.86x = 2,429.94 × 1,389.24
4. Step 4: Simplify right side
   1,762.86x = 3,375,769.85
5. Step 5: Solve for x
   x = 3,375,769.85/1,762.86
6. Step 6: Final answer
   x = 1,914.94