Finding the Fourth Proportional to 2,920.01, 4,379.84 and 1,188.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.01 : 4,379.84 = 1,188.59 : x
2. Step 2: Convert to fraction form
   2,920.01/4,379.84 = 1,188.59/x
3. Step 3: Cross multiply
   2,920.01x = 4,379.84 × 1,188.59
4. Step 4: Simplify right side
   2,920.01x = 5,205,828.08
5. Step 5: Solve for x
   x = 5,205,828.08/2,920.01
6. Step 6: Final answer
   x = 1,782.81