Finding the Fourth Proportional to 1,283,196.48, 1,925,458.40 and 931,113.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,196.48 : 1,925,458.40 = 931,113.28 : x
2. Step 2: Convert to fraction form
   1,283,196.48/1,925,458.40 = 931,113.28/x
3. Step 3: Cross multiply
   1,283,196.48x = 1,925,458.40 × 931,113.28
4. Step 4: Simplify right side
   1,283,196.48x = 1,792,819,886,327.55
5. Step 5: Solve for x
   x = 1,792,819,886,327.55/1,283,196.48
6. Step 6: Final answer
   x = 1,397,151.50