Finding the Fourth Proportional to 1,914.18, 2,641.59 and 1,666.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.18 : 2,641.59 = 1,666.32 : x
2. Step 2: Convert to fraction form
   1,914.18/2,641.59 = 1,666.32/x
3. Step 3: Cross multiply
   1,914.18x = 2,641.59 × 1,666.32
4. Step 4: Simplify right side
   1,914.18x = 4,401,734.25
5. Step 5: Solve for x
   x = 4,401,734.25/1,914.18
6. Step 6: Final answer
   x = 2,299.54