Finding the Fourth Proportional to 1,392.47, 2,088.89 and 467.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.47 : 2,088.89 = 467.72 : x
2. Step 2: Convert to fraction form
   1,392.47/2,088.89 = 467.72/x
3. Step 3: Cross multiply
   1,392.47x = 2,088.89 × 467.72
4. Step 4: Simplify right side
   1,392.47x = 977,013.29
5. Step 5: Solve for x
   x = 977,013.29/1,392.47
6. Step 6: Final answer
   x = 701.64