Finding the Fourth Proportional to 1,123,499.60, 1,550,447.88 and 670,830.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,499.60 : 1,550,447.88 = 670,830.16 : x
2. Step 2: Convert to fraction form
   1,123,499.60/1,550,447.88 = 670,830.16/x
3. Step 3: Cross multiply
   1,123,499.60x = 1,550,447.88 × 670,830.16
4. Step 4: Simplify right side
   1,123,499.60x = 1,040,087,199,412.06
5. Step 5: Solve for x
   x = 1,040,087,199,412.06/1,123,499.60
6. Step 6: Final answer
   x = 925,756.63