Finding the Fourth Proportional to 1,665.15, 2,298.38 and 1,167.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.15 : 2,298.38 = 1,167.93 : x
2. Step 2: Convert to fraction form
   1,665.15/2,298.38 = 1,167.93/x
3. Step 3: Cross multiply
   1,665.15x = 2,298.38 × 1,167.93
4. Step 4: Simplify right side
   1,665.15x = 2,684,341.11
5. Step 5: Solve for x
   x = 2,684,341.11/1,665.15
6. Step 6: Final answer
   x = 1,612.07