Finding the Fourth Proportional to 2,905,123.50, 4,358,385.09 and 910,579.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,905,123.50 : 4,358,385.09 = 910,579.50 : x
2. Step 2: Convert to fraction form
   2,905,123.50/4,358,385.09 = 910,579.50/x
3. Step 3: Cross multiply
   2,905,123.50x = 4,358,385.09 × 910,579.50
4. Step 4: Simplify right side
   2,905,123.50x = 3,968,656,116,059.66
5. Step 5: Solve for x
   x = 3,968,656,116,059.66/2,905,123.50
6. Step 6: Final answer
   x = 1,366,088.61