Finding the Fourth Proportional to 1,875.37, 2,812.83 and 779.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.37 : 2,812.83 = 779.59 : x
2. Step 2: Convert to fraction form
   1,875.37/2,812.83 = 779.59/x
3. Step 3: Cross multiply
   1,875.37x = 2,812.83 × 779.59
4. Step 4: Simplify right side
   1,875.37x = 2,192,854.73
5. Step 5: Solve for x
   x = 2,192,854.73/1,875.37
6. Step 6: Final answer
   x = 1,169.29