Finding the Fourth Proportional to 2,917,633.78, 4,377,017.94 and 1,120,385.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917,633.78 : 4,377,017.94 = 1,120,385.17 : x
2. Step 2: Convert to fraction form
   2,917,633.78/4,377,017.94 = 1,120,385.17/x
3. Step 3: Cross multiply
   2,917,633.78x = 4,377,017.94 × 1,120,385.17
4. Step 4: Simplify right side
   2,917,633.78x = 4,903,945,988,799.95
5. Step 5: Solve for x
   x = 4,903,945,988,799.95/2,917,633.78
6. Step 6: Final answer
   x = 1,680,795.59