Finding the Fourth Proportional to 1,816.72, 2,507.10 and 1,030.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.72 : 2,507.10 = 1,030.74 : x
2. Step 2: Convert to fraction form
   1,816.72/2,507.10 = 1,030.74/x
3. Step 3: Cross multiply
   1,816.72x = 2,507.10 × 1,030.74
4. Step 4: Simplify right side
   1,816.72x = 2,584,168.25
5. Step 5: Solve for x
   x = 2,584,168.25/1,816.72
6. Step 6: Final answer
   x = 1,422.44