Finding the Fourth Proportional to 1,667.98, 2,299.16 and 1,313.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.98 : 2,299.16 = 1,313.34 : x
2. Step 2: Convert to fraction form
   1,667.98/2,299.16 = 1,313.34/x
3. Step 3: Cross multiply
   1,667.98x = 2,299.16 × 1,313.34
4. Step 4: Simplify right side
   1,667.98x = 3,019,566.07
5. Step 5: Solve for x
   x = 3,019,566.07/1,667.98
6. Step 6: Final answer
   x = 1,810.32