Finding the Fourth Proportional to 1,667.08, 2,300.52 and 921.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.08 : 2,300.52 = 921.02 : x
2. Step 2: Convert to fraction form
   1,667.08/2,300.52 = 921.02/x
3. Step 3: Cross multiply
   1,667.08x = 2,300.52 × 921.02
4. Step 4: Simplify right side
   1,667.08x = 2,118,824.93
5. Step 5: Solve for x
   x = 2,118,824.93/1,667.08
6. Step 6: Final answer
   x = 1,270.98