Finding the Fourth Proportional to 1,365,488.37, 2,048,050.28 and 405,925.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365,488.37 : 2,048,050.28 = 405,925.98 : x
2. Step 2: Convert to fraction form
   1,365,488.37/2,048,050.28 = 405,925.98/x
3. Step 3: Cross multiply
   1,365,488.37x = 2,048,050.28 × 405,925.98
4. Step 4: Simplify right side
   1,365,488.37x = 831,356,814,968.64
5. Step 5: Solve for x
   x = 831,356,814,968.64/1,365,488.37
6. Step 6: Final answer
   x = 608,834.78