Finding the Fourth Proportional to 1,590.78, 2,383.55 and 1,530.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.78 : 2,383.55 = 1,530.03 : x
2. Step 2: Convert to fraction form
   1,590.78/2,383.55 = 1,530.03/x
3. Step 3: Cross multiply
   1,590.78x = 2,383.55 × 1,530.03
4. Step 4: Simplify right side
   1,590.78x = 3,646,894.91
5. Step 5: Solve for x
   x = 3,646,894.91/1,590.78
6. Step 6: Final answer
   x = 2,292.53