Finding the Fourth Proportional to 1,665,272.16, 2,497,914.72 and 403,097.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,272.16 : 2,497,914.72 = 403,097.76 : x
2. Step 2: Convert to fraction form
   1,665,272.16/2,497,914.72 = 403,097.76/x
3. Step 3: Cross multiply
   1,665,272.16x = 2,497,914.72 × 403,097.76
4. Step 4: Simplify right side
   1,665,272.16x = 1,006,903,828,303.03
5. Step 5: Solve for x
   x = 1,006,903,828,303.03/1,665,272.16
6. Step 6: Final answer
   x = 604,648.21