Finding the Fourth Proportional to 1,499.31, 2,068.74 and 1,101.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.31 : 2,068.74 = 1,101.60 : x
2. Step 2: Convert to fraction form
   1,499.31/2,068.74 = 1,101.60/x
3. Step 3: Cross multiply
   1,499.31x = 2,068.74 × 1,101.60
4. Step 4: Simplify right side
   1,499.31x = 2,278,923.98
5. Step 5: Solve for x
   x = 2,278,923.98/1,499.31
6. Step 6: Final answer
   x = 1,519.98