Finding the Fourth Proportional to 1,667.34, 2,301.84 and 1,312.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.34 : 2,301.84 = 1,312.56 : x
2. Step 2: Convert to fraction form
   1,667.34/2,301.84 = 1,312.56/x
3. Step 3: Cross multiply
   1,667.34x = 2,301.84 × 1,312.56
4. Step 4: Simplify right side
   1,667.34x = 3,021,303.11
5. Step 5: Solve for x
   x = 3,021,303.11/1,667.34
6. Step 6: Final answer
   x = 1,812.05