Finding the Fourth Proportional to 1,590.00, 2,384.54 and 479.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.00 : 2,384.54 = 479.37 : x
2. Step 2: Convert to fraction form
   1,590.00/2,384.54 = 479.37/x
3. Step 3: Cross multiply
   1,590.00x = 2,384.54 × 479.37
4. Step 4: Simplify right side
   1,590.00x = 1,143,071.87
5. Step 5: Solve for x
   x = 1,143,071.87/1,590.00
6. Step 6: Final answer
   x = 718.91