Finding the Fourth Proportional to 1,213,196.96, 1,819,729.72 and 371,751.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,196.96 : 1,819,729.72 = 371,751.16 : x
2. Step 2: Convert to fraction form
   1,213,196.96/1,819,729.72 = 371,751.16/x
3. Step 3: Cross multiply
   1,213,196.96x = 1,819,729.72 × 371,751.16
4. Step 4: Simplify right side
   1,213,196.96x = 676,486,634,296.48
5. Step 5: Solve for x
   x = 676,486,634,296.48/1,213,196.96
6. Step 6: Final answer
   x = 557,606.60