Finding the Fourth Proportional to 1,590.74, 2,385.94 and 1,004.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.74 : 2,385.94 = 1,004.07 : x
2. Step 2: Convert to fraction form
   1,590.74/2,385.94 = 1,004.07/x
3. Step 3: Cross multiply
   1,590.74x = 2,385.94 × 1,004.07
4. Step 4: Simplify right side
   1,590.74x = 2,395,645.67
5. Step 5: Solve for x
   x = 2,395,645.67/1,590.74
6. Step 6: Final answer
   x = 1,505.99