Finding the Fourth Proportional to 1,372.82, 2,056.59 and 1,154.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.82 : 2,056.59 = 1,154.81 : x
2. Step 2: Convert to fraction form
   1,372.82/2,056.59 = 1,154.81/x
3. Step 3: Cross multiply
   1,372.82x = 2,056.59 × 1,154.81
4. Step 4: Simplify right side
   1,372.82x = 2,374,960.41
5. Step 5: Solve for x
   x = 2,374,960.41/1,372.82
6. Step 6: Final answer
   x = 1,729.99