Finding the Fourth Proportional to 1,007,523.56, 1,390,382.52 and 554,814.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,523.56 : 1,390,382.52 = 554,814.56 : x
2. Step 2: Convert to fraction form
   1,007,523.56/1,390,382.52 = 554,814.56/x
3. Step 3: Cross multiply
   1,007,523.56x = 1,390,382.52 × 554,814.56
4. Step 4: Simplify right side
   1,007,523.56x = 771,404,467,460.89
5. Step 5: Solve for x
   x = 771,404,467,460.89/1,007,523.56
6. Step 6: Final answer
   x = 765,644.10