Finding the Fourth Proportional to 1,009.95, 1,507.52 and 893.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.95 : 1,507.52 = 893.31 : x
2. Step 2: Convert to fraction form
   1,009.95/1,507.52 = 893.31/x
3. Step 3: Cross multiply
   1,009.95x = 1,507.52 × 893.31
4. Step 4: Simplify right side
   1,009.95x = 1,346,682.69
5. Step 5: Solve for x
   x = 1,346,682.69/1,009.95
6. Step 6: Final answer
   x = 1,333.42