Finding the Fourth Proportional to 1,291,778.84, 1,936,411.12 and 617,686.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,778.84 : 1,936,411.12 = 617,686.04 : x
2. Step 2: Convert to fraction form
   1,291,778.84/1,936,411.12 = 617,686.04/x
3. Step 3: Cross multiply
   1,291,778.84x = 1,936,411.12 × 617,686.04
4. Step 4: Simplify right side
   1,291,778.84x = 1,196,094,116,524.76
5. Step 5: Solve for x
   x = 1,196,094,116,524.76/1,291,778.84
6. Step 6: Final answer
   x = 925,927.94