Finding the Fourth Proportional to 1,588.95, 2,379.92 and 807.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.95 : 2,379.92 = 807.59 : x
2. Step 2: Convert to fraction form
   1,588.95/2,379.92 = 807.59/x
3. Step 3: Cross multiply
   1,588.95x = 2,379.92 × 807.59
4. Step 4: Simplify right side
   1,588.95x = 1,921,983.66
5. Step 5: Solve for x
   x = 1,921,983.66/1,588.95
6. Step 6: Final answer
   x = 1,209.59