Finding the Fourth Proportional to 740,061.38, 1,021,284.72 and 400,529.63

Step by Step Solution

1. Step 1: Write the proportion equation
   740,061.38 : 1,021,284.72 = 400,529.63 : x
2. Step 2: Convert to fraction form
   740,061.38/1,021,284.72 = 400,529.63/x
3. Step 3: Cross multiply
   740,061.38x = 1,021,284.72 × 400,529.63
4. Step 4: Simplify right side
   740,061.38x = 409,054,793,579.47
5. Step 5: Solve for x
   x = 409,054,793,579.47/740,061.38
6. Step 6: Final answer
   x = 552,730.90