Finding the Fourth Proportional to 1,667.96, 2,300.84 and 1,038.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.96 : 2,300.84 = 1,038.59 : x
2. Step 2: Convert to fraction form
   1,667.96/2,300.84 = 1,038.59/x
3. Step 3: Cross multiply
   1,667.96x = 2,300.84 × 1,038.59
4. Step 4: Simplify right side
   1,667.96x = 2,389,617.91
5. Step 5: Solve for x
   x = 2,389,617.91/1,667.96
6. Step 6: Final answer
   x = 1,432.66