Finding the Fourth Proportional to 1,708.86, 2,356.80 and 1,443.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708.86 : 2,356.80 = 1,443.93 : x
2. Step 2: Convert to fraction form
   1,708.86/2,356.80 = 1,443.93/x
3. Step 3: Cross multiply
   1,708.86x = 2,356.80 × 1,443.93
4. Step 4: Simplify right side
   1,708.86x = 3,403,054.22
5. Step 5: Solve for x
   x = 3,403,054.22/1,708.86
6. Step 6: Final answer
   x = 1,991.42