Finding the Fourth Proportional to 1,191,426.03, 1,644,177.69 and 647,561.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,426.03 : 1,644,177.69 = 647,561.99 : x
2. Step 2: Convert to fraction form
   1,191,426.03/1,644,177.69 = 647,561.99/x
3. Step 3: Cross multiply
   1,191,426.03x = 1,644,177.69 × 647,561.99
4. Step 4: Simplify right side
   1,191,426.03x = 1,064,706,980,960.45
5. Step 5: Solve for x
   x = 1,064,706,980,960.45/1,191,426.03
6. Step 6: Final answer
   x = 893,640.86