Finding the Fourth Proportional to 1,590.20, 2,194.51 and 882.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.20 : 2,194.51 = 882.05 : x
2. Step 2: Convert to fraction form
   1,590.20/2,194.51 = 882.05/x
3. Step 3: Cross multiply
   1,590.20x = 2,194.51 × 882.05
4. Step 4: Simplify right side
   1,590.20x = 1,935,667.55
5. Step 5: Solve for x
   x = 1,935,667.55/1,590.20
6. Step 6: Final answer
   x = 1,217.25