Finding the Fourth Proportional to 1,667.99, 2,308.30 and 1,339.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.99 : 2,308.30 = 1,339.94 : x
2. Step 2: Convert to fraction form
   1,667.99/2,308.30 = 1,339.94/x
3. Step 3: Cross multiply
   1,667.99x = 2,308.30 × 1,339.94
4. Step 4: Simplify right side
   1,667.99x = 3,092,985.92
5. Step 5: Solve for x
   x = 3,092,985.92/1,667.99
6. Step 6: Final answer
   x = 1,854.32