Finding the Fourth Proportional to 1,590.55, 2,194.50 and 1,031.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.55 : 2,194.50 = 1,031.04 : x
2. Step 2: Convert to fraction form
   1,590.55/2,194.50 = 1,031.04/x
3. Step 3: Cross multiply
   1,590.55x = 2,194.50 × 1,031.04
4. Step 4: Simplify right side
   1,590.55x = 2,262,606.31
5. Step 5: Solve for x
   x = 2,262,606.31/1,590.55
6. Step 6: Final answer
   x = 1,422.54