Finding the Fourth Proportional to 1,620.18, 2,429.16 and 754.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620.18 : 2,429.16 = 754.02 : x
2. Step 2: Convert to fraction form
   1,620.18/2,429.16 = 754.02/x
3. Step 3: Cross multiply
   1,620.18x = 2,429.16 × 754.02
4. Step 4: Simplify right side
   1,620.18x = 1,831,635.22
5. Step 5: Solve for x
   x = 1,831,635.22/1,620.18
6. Step 6: Final answer
   x = 1,130.51