Finding the Fourth Proportional to 1,123,020.32, 1,684,345.93 and 403,213.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,020.32 : 1,684,345.93 = 403,213.01 : x
2. Step 2: Convert to fraction form
   1,123,020.32/1,684,345.93 = 403,213.01/x
3. Step 3: Cross multiply
   1,123,020.32x = 1,684,345.93 × 403,213.01
4. Step 4: Simplify right side
   1,123,020.32x = 679,150,192,316.55
5. Step 5: Solve for x
   x = 679,150,192,316.55/1,123,020.32
6. Step 6: Final answer
   x = 604,753.25