Finding the Fourth Proportional to 1,667,603.52, 2,501,370.72 and 405,437.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667,603.52 : 2,501,370.72 = 405,437.76 : x
2. Step 2: Convert to fraction form
   1,667,603.52/2,501,370.72 = 405,437.76/x
3. Step 3: Cross multiply
   1,667,603.52x = 2,501,370.72 × 405,437.76
4. Step 4: Simplify right side
   1,667,603.52x = 1,014,150,141,646.39
5. Step 5: Solve for x
   x = 1,014,150,141,646.39/1,667,603.52
6. Step 6: Final answer
   x = 608,148.24