Finding the Fourth Proportional to 1,721.45, 2,374.69 and 1,090.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.45 : 2,374.69 = 1,090.86 : x
2. Step 2: Convert to fraction form
   1,721.45/2,374.69 = 1,090.86/x
3. Step 3: Cross multiply
   1,721.45x = 2,374.69 × 1,090.86
4. Step 4: Simplify right side
   1,721.45x = 2,590,454.33
5. Step 5: Solve for x
   x = 2,590,454.33/1,721.45
6. Step 6: Final answer
   x = 1,504.81