Finding the Fourth Proportional to 1,816.72, 2,507.04 and 1,070.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.72 : 2,507.04 = 1,070.56 : x
2. Step 2: Convert to fraction form
   1,816.72/2,507.04 = 1,070.56/x
3. Step 3: Cross multiply
   1,816.72x = 2,507.04 × 1,070.56
4. Step 4: Simplify right side
   1,816.72x = 2,683,936.74
5. Step 5: Solve for x
   x = 2,683,936.74/1,816.72
6. Step 6: Final answer
   x = 1,477.35