Finding the Fourth Proportional to 897,146.82, 1,345,725.09 and 266,066.10

Step by Step Solution

1. Step 1: Write the proportion equation
   897,146.82 : 1,345,725.09 = 266,066.10 : x
2. Step 2: Convert to fraction form
   897,146.82/1,345,725.09 = 266,066.10/x
3. Step 3: Cross multiply
   897,146.82x = 1,345,725.09 × 266,066.10
4. Step 4: Simplify right side
   897,146.82x = 358,051,826,368.45
5. Step 5: Solve for x
   x = 358,051,826,368.45/897,146.82
6. Step 6: Final answer
   x = 399,100.59