Finding the Fourth Proportional to 1,667.13, 2,298.93 and 1,169.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.13 : 2,298.93 = 1,169.61 : x
2. Step 2: Convert to fraction form
   1,667.13/2,298.93 = 1,169.61/x
3. Step 3: Cross multiply
   1,667.13x = 2,298.93 × 1,169.61
4. Step 4: Simplify right side
   1,667.13x = 2,688,851.52
5. Step 5: Solve for x
   x = 2,688,851.52/1,667.13
6. Step 6: Final answer
   x = 1,612.86