Finding the Fourth Proportional to 1,499.06, 2,068.89 and 909.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.06 : 2,068.89 = 909.56 : x
2. Step 2: Convert to fraction form
   1,499.06/2,068.89 = 909.56/x
3. Step 3: Cross multiply
   1,499.06x = 2,068.89 × 909.56
4. Step 4: Simplify right side
   1,499.06x = 1,881,779.59
5. Step 5: Solve for x
   x = 1,881,779.59/1,499.06
6. Step 6: Final answer
   x = 1,255.31