Finding the Fourth Proportional to 1,659.56, 2,290.16 and 913.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.56 : 2,290.16 = 913.52 : x
2. Step 2: Convert to fraction form
   1,659.56/2,290.16 = 913.52/x
3. Step 3: Cross multiply
   1,659.56x = 2,290.16 × 913.52
4. Step 4: Simplify right side
   1,659.56x = 2,092,106.96
5. Step 5: Solve for x
   x = 2,092,106.96/1,659.56
6. Step 6: Final answer
   x = 1,260.64