Finding the Fourth Proportional to 1,772.31, 2,656.89 and 893.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.31 : 2,656.89 = 893.67 : x
2. Step 2: Convert to fraction form
   1,772.31/2,656.89 = 893.67/x
3. Step 3: Cross multiply
   1,772.31x = 2,656.89 × 893.67
4. Step 4: Simplify right side
   1,772.31x = 2,374,382.89
5. Step 5: Solve for x
   x = 2,374,382.89/1,772.31
6. Step 6: Final answer
   x = 1,339.71