Finding the Fourth Proportional to 1,191,196.52, 1,643,845.78 and 647,322.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,196.52 : 1,643,845.78 = 647,322.02 : x
2. Step 2: Convert to fraction form
   1,191,196.52/1,643,845.78 = 647,322.02/x
3. Step 3: Cross multiply
   1,191,196.52x = 1,643,845.78 × 647,322.02
4. Step 4: Simplify right side
   1,191,196.52x = 1,064,097,570,878.08
5. Step 5: Solve for x
   x = 1,064,097,570,878.08/1,191,196.52
6. Step 6: Final answer
   x = 893,301.44