Finding the Fourth Proportional to 1,719.78, 2,373.72 and 1,090.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.78 : 2,373.72 = 1,090.68 : x
2. Step 2: Convert to fraction form
   1,719.78/2,373.72 = 1,090.68/x
3. Step 3: Cross multiply
   1,719.78x = 2,373.72 × 1,090.68
4. Step 4: Simplify right side
   1,719.78x = 2,588,968.93
5. Step 5: Solve for x
   x = 2,588,968.93/1,719.78
6. Step 6: Final answer
   x = 1,505.41