Finding the Fourth Proportional to 1,719.81, 2,373.38 and 1,056.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.81 : 2,373.38 = 1,056.28 : x
2. Step 2: Convert to fraction form
   1,719.81/2,373.38 = 1,056.28/x
3. Step 3: Cross multiply
   1,719.81x = 2,373.38 × 1,056.28
4. Step 4: Simplify right side
   1,719.81x = 2,506,948.55
5. Step 5: Solve for x
   x = 2,506,948.55/1,719.81
6. Step 6: Final answer
   x = 1,457.69