Finding the Fourth Proportional to 739,965.01, 1,109,498.05 and 290,146.96

Step by Step Solution

1. Step 1: Write the proportion equation
   739,965.01 : 1,109,498.05 = 290,146.96 : x
2. Step 2: Convert to fraction form
   739,965.01/1,109,498.05 = 290,146.96/x
3. Step 3: Cross multiply
   739,965.01x = 1,109,498.05 × 290,146.96
4. Step 4: Simplify right side
   739,965.01x = 321,917,482,834.32
5. Step 5: Solve for x
   x = 321,917,482,834.32/739,965.01
6. Step 6: Final answer
   x = 435,044.20