Finding the Fourth Proportional to 896,644, 1,237,368.72 and 538,948

Step by Step Solution

1. Step 1: Write the proportion equation
   896,644 : 1,237,368.72 = 538,948 : x
2. Step 2: Convert to fraction form
   896,644/1,237,368.72 = 538,948/x
3. Step 3: Cross multiply
   896,644x = 1,237,368.72 × 538,948
4. Step 4: Simplify right side
   896,644x = 666,877,396,906.56
5. Step 5: Solve for x
   x = 666,877,396,906.56/896,644
6. Step 6: Final answer
   x = 743,748.24