Finding the Fourth Proportional to 1,762.43, 2,431.31 and 1,053.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.43 : 2,431.31 = 1,053.86 : x
2. Step 2: Convert to fraction form
   1,762.43/2,431.31 = 1,053.86/x
3. Step 3: Cross multiply
   1,762.43x = 2,431.31 × 1,053.86
4. Step 4: Simplify right side
   1,762.43x = 2,562,242.93
5. Step 5: Solve for x
   x = 2,562,242.93/1,762.43
6. Step 6: Final answer
   x = 1,453.82