Finding the Fourth Proportional to 1,356.66, 2,030.40 and 738.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.66 : 2,030.40 = 738.72 : x
2. Step 2: Convert to fraction form
   1,356.66/2,030.40 = 738.72/x
3. Step 3: Cross multiply
   1,356.66x = 2,030.40 × 738.72
4. Step 4: Simplify right side
   1,356.66x = 1,499,897.09
5. Step 5: Solve for x
   x = 1,499,897.09/1,356.66
6. Step 6: Final answer
   x = 1,105.58