Finding the Fourth Proportional to 2,116,381.94, 2,920,638.28 and 1,198,588.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,381.94 : 2,920,638.28 = 1,198,588.26 : x
2. Step 2: Convert to fraction form
   2,116,381.94/2,920,638.28 = 1,198,588.26/x
3. Step 3: Cross multiply
   2,116,381.94x = 2,920,638.28 × 1,198,588.26
4. Step 4: Simplify right side
   2,116,381.94x = 3,500,642,754,114.59
5. Step 5: Solve for x
   x = 3,500,642,754,114.59/2,116,381.94
6. Step 6: Final answer
   x = 1,654,069.47