Finding the Fourth Proportional to 1,590.94, 2,194.32 and 1,066.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.94 : 2,194.32 = 1,066.06 : x
2. Step 2: Convert to fraction form
   1,590.94/2,194.32 = 1,066.06/x
3. Step 3: Cross multiply
   1,590.94x = 2,194.32 × 1,066.06
4. Step 4: Simplify right side
   1,590.94x = 2,339,276.78
5. Step 5: Solve for x
   x = 2,339,276.78/1,590.94
6. Step 6: Final answer
   x = 1,470.37