Finding the Fourth Proportional to 1,372.56, 1,892.48 and 1,162.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.56 : 1,892.48 = 1,162.40 : x
2. Step 2: Convert to fraction form
   1,372.56/1,892.48 = 1,162.40/x
3. Step 3: Cross multiply
   1,372.56x = 1,892.48 × 1,162.40
4. Step 4: Simplify right side
   1,372.56x = 2,199,818.75
5. Step 5: Solve for x
   x = 2,199,818.75/1,372.56
6. Step 6: Final answer
   x = 1,602.71