Finding the Fourth Proportional to 1,618.96, 2,416.80 and 1,554.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.96 : 2,416.80 = 1,554.16 : x
2. Step 2: Convert to fraction form
   1,618.96/2,416.80 = 1,554.16/x
3. Step 3: Cross multiply
   1,618.96x = 2,416.80 × 1,554.16
4. Step 4: Simplify right side
   1,618.96x = 3,756,093.89
5. Step 5: Solve for x
   x = 3,756,093.89/1,618.96
6. Step 6: Final answer
   x = 2,320.07