Finding the Fourth Proportional to 1,488.86, 2,233.30 and 1,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.86 : 2,233.30 = 1,164.50 : x
2. Step 2: Convert to fraction form
   1,488.86/2,233.30 = 1,164.50/x
3. Step 3: Cross multiply
   1,488.86x = 2,233.30 × 1,164.50
4. Step 4: Simplify right side
   1,488.86x = 2,600,677.85
5. Step 5: Solve for x
   x = 2,600,677.85/1,488.86
6. Step 6: Final answer
   x = 1,746.76