Finding the Fourth Proportional to 1,663.07, 2,495.12 and 738.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663.07 : 2,495.12 = 738.55 : x
2. Step 2: Convert to fraction form
   1,663.07/2,495.12 = 738.55/x
3. Step 3: Cross multiply
   1,663.07x = 2,495.12 × 738.55
4. Step 4: Simplify right side
   1,663.07x = 1,842,774.46
5. Step 5: Solve for x
   x = 1,842,774.46/1,663.07
6. Step 6: Final answer
   x = 1,108.06