Finding the Fourth Proportional to 1,485.74, 2,231.59 and 893.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.74 : 2,231.59 = 893.93 : x
2. Step 2: Convert to fraction form
   1,485.74/2,231.59 = 893.93/x
3. Step 3: Cross multiply
   1,485.74x = 2,231.59 × 893.93
4. Step 4: Simplify right side
   1,485.74x = 1,994,885.25
5. Step 5: Solve for x
   x = 1,994,885.25/1,485.74
6. Step 6: Final answer
   x = 1,342.69