Finding the Fourth Proportional to 1,301,870.56, 1,953,117.57 and 543,290.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301,870.56 : 1,953,117.57 = 543,290.05 : x
2. Step 2: Convert to fraction form
   1,301,870.56/1,953,117.57 = 543,290.05/x
3. Step 3: Cross multiply
   1,301,870.56x = 1,953,117.57 × 543,290.05
4. Step 4: Simplify right side
   1,301,870.56x = 1,061,109,342,261.18
5. Step 5: Solve for x
   x = 1,061,109,342,261.18/1,301,870.56
6. Step 6: Final answer
   x = 815,065.16