Finding the Fourth Proportional to 1,372.44, 1,892.72 and 1,174.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.44 : 1,892.72 = 1,174.02 : x
2. Step 2: Convert to fraction form
   1,372.44/1,892.72 = 1,174.02/x
3. Step 3: Cross multiply
   1,372.44x = 1,892.72 × 1,174.02
4. Step 4: Simplify right side
   1,372.44x = 2,222,085.26
5. Step 5: Solve for x
   x = 2,222,085.26/1,372.44
6. Step 6: Final answer
   x = 1,619.08