Finding the Fourth Proportional to 1,432.83, 1,978.26 and 1,100.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.83 : 1,978.26 = 1,100.67 : x
2. Step 2: Convert to fraction form
   1,432.83/1,978.26 = 1,100.67/x
3. Step 3: Cross multiply
   1,432.83x = 1,978.26 × 1,100.67
4. Step 4: Simplify right side
   1,432.83x = 2,177,411.43
5. Step 5: Solve for x
   x = 2,177,411.43/1,432.83
6. Step 6: Final answer
   x = 1,519.66